689696627628 has 48 divisors (see below), whose sum is σ = 1673501276160. Its totient is φ = 220809153600.

The previous prime is 689696627573. The next prime is 689696627693. The reversal of 689696627628 is 826726696986.

689696627628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×689696627628² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 689696627628.

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, 5121718 + ... + 5254653.

It is an arithmetic number, because the mean of its divisors is an integer number (34864609920).

Almost surely, 2^689696627628 is an apocalyptic number.

It is an amenable number.

689696627628 is an abundant number, since it is smaller than the sum of its proper divisors (983804648532).

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

689696627628 is a wasteful number, since it uses less digits than its factorization.

689696627628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376598 (or 10376596 counting only the distinct ones).

The product of its digits is 1128701952, while the sum is 75.

The spelling of 689696627628 in words is "six hundred eighty-nine billion, six hundred ninety-six million, six hundred twenty-seven thousand, six hundred twenty-eight".