79657248572 has 24 divisors (see below), whose sum is σ = 155308527360. Its totient is φ = 35437459760.

The previous prime is 79657248557. The next prime is 79657248577. The reversal of 79657248572 is 27584275697.

It is a super-2 number, since 2×79657248572² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79657248577) 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 7 ways as a sum of consecutive naturals, for example, 19257422 + ... + 19261557.

It is an arithmetic number, because the mean of its divisors is an integer number (6471188640).

Almost surely, 2^79657248572 is an apocalyptic number.

It is an amenable number.

79657248572 is a deficient number, since it is larger than the sum of its proper divisors (75651278788).

79657248572 is a wasteful number, since it uses less digits than its factorization.

79657248572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38519041 (or 38519039 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 62.

The spelling of 79657248572 in words is "seventy-nine billion, six hundred fifty-seven million, two hundred forty-eight thousand, five hundred seventy-two".