672702716520 has 48 divisors (see below), whose sum is σ = 2186283829860. Its totient is φ = 179387390976.

The previous prime is 672702716509. The next prime is 672702716549. The reversal of 672702716520 is 25617207276.

672702716520 is a `hidden beast` number, since 67 + 270 + 271 + 6 + 52 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 642745337796 + 29957378724 = 801714^2 + 173082^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 934308969 + ... + 934309688.

Almost surely, 2^672702716520 is an apocalyptic number.

672702716520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672702716520 is an abundant number, since it is smaller than the sum of its proper divisors (1513581113340).

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

672702716520 is a wasteful number, since it uses less digits than its factorization.

672702716520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868618674 (or 1868618667 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 672702716520 in words is "six hundred seventy-two billion, seven hundred two million, seven hundred sixteen thousand, five hundred twenty".