40861632698 has 12 divisors (see below), whose sum is σ = 64073204538. Its totient is φ = 19542519480.

The previous prime is 40861632671. The next prime is 40861632733. The reversal of 40861632698 is 89623616804.

It can be written as a sum of positive squares in only one way, i.e., 37584413689 + 3277219009 = 193867^2 + 57247^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19309733 + ... + 19311848.

Almost surely, 2^40861632698 is an apocalyptic number.

40861632698 is a deficient number, since it is larger than the sum of its proper divisors (23211571840).

40861632698 is a wasteful number, since it uses less digits than its factorization.

40861632698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38621629 (or 38621606 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 40861632698 in words is "forty billion, eight hundred sixty-one million, six hundred thirty-two thousand, six hundred ninety-eight".