79684489555 has 64 divisors (see below), whose sum is σ = 116166721536. Its totient is φ = 51787008000.

The previous prime is 79684489543. The next prime is 79684489559. The reversal of 79684489555 is 55598448697.

It is not a de Polignac number, because 79684489555 - 2⁵ = 79684489523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79684489559) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1510270 + ... + 1562140.

It is an arithmetic number, because the mean of its divisors is an integer number (1815105024).

Almost surely, 2^79684489555 is an apocalyptic number.

79684489555 is a deficient number, since it is larger than the sum of its proper divisors (36482231981).

79684489555 is a wasteful number, since it uses less digits than its factorization.

79684489555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51988.

The product of its digits is 435456000, while the sum is 70.

The spelling of 79684489555 in words is "seventy-nine billion, six hundred eighty-four million, four hundred eighty-nine thousand, five hundred fifty-five".