10639641610 has 32 divisors (see below), whose sum is σ = 20695001040. Its totient is φ = 3915061248.

The previous prime is 10639641577. The next prime is 10639641611. The reversal of 10639641610 is 1614693601.

It can be written as a sum of positive squares in 8 ways, for example, as 8550146089 + 2089495521 = 92467^2 + 45711^2 .

It is a super-2 number, since 2×10639641610² (a number of 21 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 10639641610.

It is not an unprimeable number, because it can be changed into a prime (10639641611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101575 + ... + 177754.

Almost surely, 2^10639641610 is an apocalyptic number.

10639641610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10639641610 is a deficient number, since it is larger than the sum of its proper divisors (10055359430).

10639641610 is a wasteful number, since it uses less digits than its factorization.

10639641610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279642.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 10639641610 in words is "ten billion, six hundred thirty-nine million, six hundred forty-one thousand, six hundred ten".