79146574675542 has 24 divisors (see below), whose sum is σ = 187073721960840. Its totient is φ = 23983810507680.

The previous prime is 79146574675513. The next prime is 79146574675559. The reversal of 79146574675542 is 24557647564197.

79146574675542 is a `hidden beast` number, since 7 + 9 + 1 + 4 + 6 + 5 + 7 + 4 + 6 + 75 + 542 = 666.

It is a super-2 number, since 2×79146574675542² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199865087367 + ... + 199865087762.

It is an arithmetic number, because the mean of its divisors is an integer number (7794738415035).

Almost surely, 2^{79146574675542} is an apocalyptic number.

79146574675542 is an abundant number, since it is smaller than the sum of its proper divisors (107927147285298).

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

79146574675542 is a wasteful number, since it uses less digits than its factorization.

79146574675542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399730175148 (or 399730175145 counting only the distinct ones).

The product of its digits is 1778112000, while the sum is 72.

The spelling of 79146574675542 in words is "seventy-nine trillion, one hundred forty-six billion, five hundred seventy-four million, six hundred seventy-five thousand, five hundred forty-two".