79687079394 has 16 divisors (see below), whose sum is σ = 171633709632. Its totient is φ = 24519101328.

The previous prime is 79687079393. The next prime is 79687079411. The reversal of 79687079394 is 49397078697.

It is not an unprimeable number, because it can be changed into a prime (79687079393) 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, 510814534 + ... + 510814689.

It is an arithmetic number, because the mean of its divisors is an integer number (10727106852).

Almost surely, 2^79687079394 is an apocalyptic number.

79687079394 is an abundant number, since it is smaller than the sum of its proper divisors (91946630238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79687079394 is a wasteful number, since it uses less digits than its factorization.

79687079394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021629241.

The product of its (nonzero) digits is 144027072, while the sum is 69.

The spelling of 79687079394 in words is "seventy-nine billion, six hundred eighty-seven million, seventy-nine thousand, three hundred ninety-four".