1287268791160 has 64 divisors (see below), whose sum is σ = 3192233677920. Its totient is φ = 463271976960.

The previous prime is 1287268791143. The next prime is 1287268791167. The reversal of 1287268791160 is 611978627821.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1287268791095 and 1287268791104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287268791167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15037789 + ... + 15123148.

Almost surely, 2^{1287268791160} is an apocalyptic number.

1287268791160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1287268791160 is an abundant number, since it is smaller than the sum of its proper divisors (1904964886760).

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

1287268791160 is a wasteful number, since it uses less digits than its factorization.

1287268791160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30161056 (or 30161052 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 58.

The spelling of 1287268791160 in words is "one trillion, two hundred eighty-seven billion, two hundred sixty-eight million, seven hundred ninety-one thousand, one hundred sixty".