680475741517 has 32 divisors (see below), whose sum is σ = 811607981184. Its totient is φ = 562342176000.

The previous prime is 680475741511. The next prime is 680475741527. The reversal of 680475741517 is 715147574086.

It is a happy number.

It is not a de Polignac number, because 680475741517 - 2⁷ = 680475741389 is a prime.

It is a super-2 number, since 2×680475741517² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680475741511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41736267 + ... + 41752567.

It is an arithmetic number, because the mean of its divisors is an integer number (25362749412).

Almost surely, 2^680475741517 is an apocalyptic number.

680475741517 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

680475741517 is a deficient number, since it is larger than the sum of its proper divisors (131132239667).

680475741517 is a wasteful number, since it uses less digits than its factorization.

680475741517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20749.

The product of its (nonzero) digits is 6585600, while the sum is 55.

The spelling of 680475741517 in words is "six hundred eighty billion, four hundred seventy-five million, seven hundred forty-one thousand, five hundred seventeen".