690746632808632 has 32 divisors (see below), whose sum is σ = 1371447995188320. Its totient is φ = 325030508707840.

The previous prime is 690746632808627. The next prime is 690746632808657. The reversal of 690746632808632 is 236808236647096.

It is a super-2 number, since 2×690746632808632² (a number of 30 digits) contains 22 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, 207170188 + ... + 210477979.

It is an arithmetic number, because the mean of its divisors is an integer number (42857749849635).

Almost surely, 2^{690746632808632} is an apocalyptic number.

It is an amenable number.

690746632808632 is a deficient number, since it is larger than the sum of its proper divisors (680701362379688).

690746632808632 is a wasteful number, since it uses less digits than its factorization.

690746632808632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417660351 (or 417660347 counting only the distinct ones).

The product of its (nonzero) digits is 752467968, while the sum is 70.

The spelling of 690746632808632 in words is "six hundred ninety trillion, seven hundred forty-six billion, six hundred thirty-two million, eight hundred eight thousand, six hundred thirty-two".