1271087712954 has 16 divisors (see below), whose sum is σ = 2824639362240. Its totient is φ = 423695904300.

The previous prime is 1271087712949. The next prime is 1271087712959. The reversal of 1271087712954 is 4592177801721.

1271087712954 is a `hidden beast` number, since 1 + 271 + 0 + 87 + 7 + 1 + 295 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1271087712949) and next prime (1271087712959).

It is a super-2 number, since 2×1271087712954² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 23538661351 = 1271087712954 / (1 + 2 + 7 + 1 + 0 + 8 + 7 + 7 + 1 + 2 + 9 + 5 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 1271087712954.

It is not an unprimeable number, because it can be changed into a prime (1271087712959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11769330622 + ... + 11769330729.

It is an arithmetic number, because the mean of its divisors is an integer number (176539960140).

Almost surely, 2^{1271087712954} is an apocalyptic number.

1271087712954 is an abundant number, since it is smaller than the sum of its proper divisors (1553551649286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271087712954 is a wasteful number, since it uses less digits than its factorization.

1271087712954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23538661362 (or 23538661356 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 54.

The spelling of 1271087712954 in words is "one trillion, two hundred seventy-one billion, eighty-seven million, seven hundred twelve thousand, nine hundred fifty-four".