79472538018 has 32 divisors (see below), whose sum is σ = 176655360000. Its totient is φ = 26483388048.

The previous prime is 79472538011. The next prime is 79472538031. The reversal of 79472538018 is 81083527497.

It is a happy number.

79472538018 is a `hidden beast` number, since 7 + 94 + 7 + 2 + 538 + 0 + 18 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (79472538011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11893 + ... + 398856.

It is an arithmetic number, because the mean of its divisors is an integer number (5520480000).

Almost surely, 2^79472538018 is an apocalyptic number.

79472538018 is an abundant number, since it is smaller than the sum of its proper divisors (97182821982).

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

79472538018 is a wasteful number, since it uses less digits than its factorization.

79472538018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414343 (or 414337 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 79472538018 in words is "seventy-nine billion, four hundred seventy-two million, five hundred thirty-eight thousand, eighteen".