79401662859552 has 384 divisors, whose sum is σ = 238677600043008. Its totient is φ = 22899237580800.

The previous prime is 79401662859551. The next prime is 79401662859557. The reversal of 79401662859552 is 25595826610497.

It is not an unprimeable number, because it can be changed into a prime (79401662859551) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 352199538 + ... + 352424910.

It is an arithmetic number, because the mean of its divisors is an integer number (621556250112).

Almost surely, 2^{79401662859552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79401662859552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119338800021504).

79401662859552 is an abundant number, since it is smaller than the sum of its proper divisors (159275937183456).

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

79401662859552 is a wasteful number, since it uses less digits than its factorization.

79401662859552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225632 (or 225624 counting only the distinct ones).

The product of its (nonzero) digits is 326592000, while the sum is 69.

The spelling of 79401662859552 in words is "seventy-nine trillion, four hundred one billion, six hundred sixty-two million, eight hundred fifty-nine thousand, five hundred fifty-two".