681425585475 has 24 divisors (see below), whose sum is σ = 1137778336752. Its totient is φ = 359828688000.

The previous prime is 681425585459. The next prime is 681425585513. The reversal of 681425585475 is 574585524186.

It is not a de Polignac number, because 681425585475 - 2⁴ = 681425585459 is a prime.

It is a super-3 number, since 3×681425585475³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44971012 + ... + 44986161.

It is an arithmetic number, because the mean of its divisors is an integer number (47407430698).

Almost surely, 2^681425585475 is an apocalyptic number.

681425585475 is a deficient number, since it is larger than the sum of its proper divisors (456352751277).

681425585475 is a wasteful number, since it uses less digits than its factorization.

681425585475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89957287 (or 89957282 counting only the distinct ones).

The product of its digits is 53760000, while the sum is 60.

The spelling of 681425585475 in words is "six hundred eighty-one billion, four hundred twenty-five million, five hundred eighty-five thousand, four hundred seventy-five".