716856870520 has 32 divisors (see below), whose sum is σ = 1843346239200. Its totient is φ = 245779498368.

The previous prime is 716856870517. The next prime is 716856870539. The reversal of 716856870520 is 25078658617.

It is a super-3 number, since 3×716856870520³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280101275 + ... + 1280101834.

It is an arithmetic number, because the mean of its divisors is an integer number (57604569975).

Almost surely, 2^716856870520 is an apocalyptic number.

716856870520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

716856870520 is an abundant number, since it is smaller than the sum of its proper divisors (1126489368680).

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

716856870520 is a wasteful number, since it uses less digits than its factorization.

716856870520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560203127 (or 2560203123 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 716856870520 in words is "seven hundred sixteen billion, eight hundred fifty-six million, eight hundred seventy thousand, five hundred twenty".