1272678111744 has 80 divisors (see below), whose sum is σ = 3651301322592. Its totient is φ = 391593259008.

The previous prime is 1272678111737. The next prime is 1272678111787. The reversal of 1272678111744 is 4471118762721.

It is a happy number.

It is a super-2 number, since 2×1272678111744² (a number of 25 digits) contains 22 as substring.

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, 31847974 + ... + 31887909.

Almost surely, 2^{1272678111744} is an apocalyptic number.

It is an amenable number.

1272678111744 is an abundant number, since it is smaller than the sum of its proper divisors (2378623210848).

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

1272678111744 is an equidigital number, since it uses as much as digits as its factorization.

1272678111744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63735917 (or 63735901 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 51.

The spelling of 1272678111744 in words is "one trillion, two hundred seventy-two billion, six hundred seventy-eight million, one hundred eleven thousand, seven hundred forty-four".