79309005785 has 16 divisors (see below), whose sum is σ = 97325356032. Its totient is φ = 62014440000.

The previous prime is 79309005773. The next prime is 79309005833. The reversal of 79309005785 is 58750090397.

It is a happy number.

It is not a de Polignac number, because 79309005785 - 2²⁴ = 79292228569 is a prime.

It is a super-4 number, since 4×79309005785⁴ (a number of 45 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48206 + ... + 401175.

It is an arithmetic number, because the mean of its divisors is an integer number (6082834752).

Almost surely, 2^79309005785 is an apocalyptic number.

It is an amenable number.

79309005785 is a deficient number, since it is larger than the sum of its proper divisors (18016350247).

79309005785 is a wasteful number, since it uses less digits than its factorization.

79309005785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450184.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 79309005785 in words is "seventy-nine billion, three hundred nine million, five thousand, seven hundred eighty-five".