1272075516280 has 32 divisors (see below), whose sum is σ = 2864553175440. Its totient is φ = 508406515200.

The previous prime is 1272075516253. The next prime is 1272075516301. The reversal of 1272075516280 is 826155702721.

It is a happy number.

It is a super-2 number, since 2×1272075516280² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1272075516280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13191714 + ... + 13287793.

Almost surely, 2^{1272075516280} is an apocalyptic number.

1272075516280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1272075516280 is an abundant number, since it is smaller than the sum of its proper divisors (1592477659160).

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

1272075516280 is a wasteful number, since it uses less digits than its factorization.

1272075516280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26480719 (or 26480715 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 46.

The spelling of 1272075516280 in words is "one trillion, two hundred seventy-two billion, seventy-five million, five hundred sixteen thousand, two hundred eighty".