8672579780 has 12 divisors (see below), whose sum is σ = 18212417580. Its totient is φ = 3469031904.

The previous prime is 8672579771. The next prime is 8672579821. The reversal of 8672579780 is 879752768.

It can be written as a sum of positive squares in 2 ways, for example, as 1099055104 + 7573524676 = 33152^2 + 87026^2 .

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216814475 + ... + 216814514.

It is an arithmetic number, because the mean of its divisors is an integer number (1517701465).

Almost surely, 2^8672579780 is an apocalyptic number.

It is an amenable number.

8672579780 is an abundant number, since it is smaller than the sum of its proper divisors (9539837800).

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

8672579780 is a wasteful number, since it uses less digits than its factorization.

8672579780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433628998 (or 433628996 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 59.

The square root of 8672579780 is about 93126.6867229797. The cubic root of 8672579780 is about 2054.5470972050.

The spelling of 8672579780 in words is "eight billion, six hundred seventy-two million, five hundred seventy-nine thousand, seven hundred eighty".