79074217869 has 16 divisors (see below), whose sum is σ = 107235168768. Its totient is φ = 51818077872.

The previous prime is 79074217861. The next prime is 79074217889. The reversal of 79074217869 is 96871247097.

It is not a de Polignac number, because 79074217869 - 2³ = 79074217861 is a prime.

It is a super-2 number, since 2×79074217869² (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 (79074217861) 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, 327337 + ... + 515070.

It is an arithmetic number, because the mean of its divisors is an integer number (6702198048).

Almost surely, 2^79074217869 is an apocalyptic number.

It is an amenable number.

79074217869 is a deficient number, since it is larger than the sum of its proper divisors (28160950899).

79074217869 is a wasteful number, since it uses less digits than its factorization.

79074217869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842944.

The product of its (nonzero) digits is 10668672, while the sum is 60.

The spelling of 79074217869 in words is "seventy-nine billion, seventy-four million, two hundred seventeen thousand, eight hundred sixty-nine".