79090256144 has 20 divisors (see below), whose sum is σ = 155834616720. Its totient is φ = 38874871200.

The previous prime is 79090256131. The next prime is 79090256149. The reversal of 79090256144 is 44165209097.

It is not an unprimeable number, because it can be changed into a prime (79090256149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41890082 + ... + 41891969.

It is an arithmetic number, because the mean of its divisors is an integer number (7791730836).

Almost surely, 2^79090256144 is an apocalyptic number.

It is an amenable number.

79090256144 is a deficient number, since it is larger than the sum of its proper divisors (76744360576).

79090256144 is a wasteful number, since it uses less digits than its factorization.

79090256144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83782118 (or 83782112 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 79090256144 in words is "seventy-nine billion, ninety million, two hundred fifty-six thousand, one hundred forty-four".