672815512986 has 32 divisors (see below), whose sum is σ = 1355408678400. Its totient is φ = 222642460080.

The previous prime is 672815512979. The next prime is 672815513003. The reversal of 672815512986 is 689215518276.

It is a super-2 number, since 2×672815512986² (a number of 24 digits) contains 22 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, 19924905 + ... + 19958643.

It is an arithmetic number, because the mean of its divisors is an integer number (42356521200).

Almost surely, 2^672815512986 is an apocalyptic number.

672815512986 is an abundant number, since it is smaller than the sum of its proper divisors (682593165414).

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

672815512986 is a wasteful number, since it uses less digits than its factorization.

672815512986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57794.

The product of its digits is 14515200, while the sum is 60.

The spelling of 672815512986 in words is "six hundred seventy-two billion, eight hundred fifteen million, five hundred twelve thousand, nine hundred eighty-six".