79909318653 has 8 divisors (see below), whose sum is σ = 106550210400. Its totient is φ = 53270653008.

The previous prime is 79909318651. The next prime is 79909318661. The reversal of 79909318653 is 35681390997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79909318653 - 2¹ = 79909318651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79909318651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470883 + ... + 617696.

It is an arithmetic number, because the mean of its divisors is an integer number (13318776300).

Almost surely, 2^79909318653 is an apocalyptic number.

It is an amenable number.

79909318653 is a deficient number, since it is larger than the sum of its proper divisors (26640891747).

79909318653 is a wasteful number, since it uses less digits than its factorization.

79909318653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113051.

The product of its (nonzero) digits is 11022480, while the sum is 60.

The spelling of 79909318653 in words is "seventy-nine billion, nine hundred nine million, three hundred eighteen thousand, six hundred fifty-three".