40699907520 has 56 divisors (see below), whose sum is σ = 129222209424. Its totient is φ = 10853308416.

The previous prime is 40699907509. The next prime is 40699907561. The reversal of 40699907520 is 2570999604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21196909 + ... + 21198828.

It is an arithmetic number, because the mean of its divisors is an integer number (2307539454).

Almost surely, 2^40699907520 is an apocalyptic number.

40699907520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40699907520 is an abundant number, since it is smaller than the sum of its proper divisors (88522301904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40699907520 is a wasteful number, since it uses less digits than its factorization.

40699907520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42395757 (or 42395747 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 40699907520 in words is "forty billion, six hundred ninety-nine million, nine hundred seven thousand, five hundred twenty".