1272879692512 has 24 divisors (see below), whose sum is σ = 2511796264992. Its totient is φ = 634963180800.

The previous prime is 1272879692507. The next prime is 1272879692531. The reversal of 1272879692512 is 2152969782721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46131789 + ... + 46159372.

It is an arithmetic number, because the mean of its divisors is an integer number (104658177708).

Almost surely, 2^{1272879692512} is an apocalyptic number.

It is an amenable number.

1272879692512 is a deficient number, since it is larger than the sum of its proper divisors (1238916572480).

1272879692512 is an equidigital number, since it uses as much as digits as its factorization.

1272879692512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92291602 (or 92291594 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 61.

The spelling of 1272879692512 in words is "one trillion, two hundred seventy-two billion, eight hundred seventy-nine million, six hundred ninety-two thousand, five hundred twelve".