79718592499 has 24 divisors (see below), whose sum is σ = 99912740928. Its totient is φ = 63045319680.

The previous prime is 79718592491. The next prime is 79718592533. The reversal of 79718592499 is 99429581797.

It is not a de Polignac number, because 79718592499 - 2³ = 79718592491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79718592491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1429459 + ... + 1484179.

It is an arithmetic number, because the mean of its divisors is an integer number (4163030872).

Almost surely, 2^79718592499 is an apocalyptic number.

79718592499 is a deficient number, since it is larger than the sum of its proper divisors (20194148429).

79718592499 is a wasteful number, since it uses less digits than its factorization.

79718592499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57035 (or 57028 counting only the distinct ones).

The product of its digits is 102876480, while the sum is 70.

The spelling of 79718592499 in words is "seventy-nine billion, seven hundred eighteen million, five hundred ninety-two thousand, four hundred ninety-nine".