79575809742 has 96 divisors (see below), whose sum is σ = 205990162560. Its totient is φ = 21881655360.

The previous prime is 79575809741. The next prime is 79575809773. The reversal of 79575809742 is 24790857597.

79575809742 is a `hidden beast` number, since 7 + 9 + 5 + 7 + 580 + 9 + 7 + 42 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 79575809742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79575809741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110128 + ... + 413859.

It is an arithmetic number, because the mean of its divisors is an integer number (2145730860).

Almost surely, 2^79575809742 is an apocalyptic number.

79575809742 is an abundant number, since it is smaller than the sum of its proper divisors (126414352818).

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

79575809742 is a wasteful number, since it uses less digits than its factorization.

79575809742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524078 (or 524075 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 63.

The spelling of 79575809742 in words is "seventy-nine billion, five hundred seventy-five million, eight hundred nine thousand, seven hundred forty-two".