40688174864 has 20 divisors (see below), whose sum is σ = 80009957904. Its totient is φ = 20040443808.

The previous prime is 40688174843. The next prime is 40688174899. The reversal of 40688174864 is 46847188604.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18976622 + ... + 18978765.

Almost surely, 2^40688174864 is an apocalyptic number.

It is an amenable number.

40688174864 is a deficient number, since it is larger than the sum of its proper divisors (39321783040).

40688174864 is a wasteful number, since it uses less digits than its factorization.

40688174864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37955462 (or 37955456 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 56.

The spelling of 40688174864 in words is "forty billion, six hundred eighty-eight million, one hundred seventy-four thousand, eight hundred sixty-four".