632742790690 has 8 divisors (see below), whose sum is σ = 1138937023260. Its totient is φ = 253097116272.

The previous prime is 632742790639. The next prime is 632742790697. The reversal of 632742790690 is 96097247236.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 627648971049 + 5093819641 = 792243^2 + 71371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×632742790690² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (632742790697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31637139525 + ... + 31637139544.

Almost surely, 2^632742790690 is an apocalyptic number.

632742790690 is a deficient number, since it is larger than the sum of its proper divisors (506194232570).

632742790690 is a wasteful number, since it uses less digits than its factorization.

632742790690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63274279076.

The product of its (nonzero) digits is 6858432, while the sum is 55.

The spelling of 632742790690 in words is "six hundred thirty-two billion, seven hundred forty-two million, seven hundred ninety thousand, six hundred ninety".