79818522537 has 16 divisors (see below), whose sum is σ = 115370235008. Its totient is φ = 48793795200.

The previous prime is 79818522523. The next prime is 79818522551. The reversal of 79818522537 is 73522581897.

It is an interprime number because it is at equal distance from previous prime (79818522523) and next prime (79818522551).

It is not a de Polignac number, because 79818522537 - 2¹⁰ = 79818521513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79818522517) 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, 6771028 + ... + 6782805.

It is an arithmetic number, because the mean of its divisors is an integer number (7210639688).

Almost surely, 2^79818522537 is an apocalyptic number.

It is an amenable number.

79818522537 is a deficient number, since it is larger than the sum of its proper divisors (35551712471).

79818522537 is a wasteful number, since it uses less digits than its factorization.

79818522537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13554000.

The product of its digits is 8467200, while the sum is 57.

The spelling of 79818522537 in words is "seventy-nine billion, eight hundred eighteen million, five hundred twenty-two thousand, five hundred thirty-seven".