1239951056790 has 32 divisors (see below), whose sum is σ = 2985451312896. Its totient is φ = 329590417760.

The previous prime is 1239951056749. The next prime is 1239951056807. The reversal of 1239951056790 is 976501599321.

It is a self number, because there is not a number n which added to its sum of digits gives 1239951056790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66440352 + ... + 66459011.

It is an arithmetic number, because the mean of its divisors is an integer number (93295353528).

Almost surely, 2^{1239951056790} is an apocalyptic number.

1239951056790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1239951056790 is an abundant number, since it is smaller than the sum of its proper divisors (1745500256106).

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

1239951056790 is a wasteful number, since it uses less digits than its factorization.

1239951056790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132899684.

The product of its (nonzero) digits is 4592700, while the sum is 57.

The spelling of 1239951056790 in words is "one trillion, two hundred thirty-nine billion, nine hundred fifty-one million, fifty-six thousand, seven hundred ninety".