39720490680 has 64 divisors (see below), whose sum is σ = 128327744160. Its totient is φ = 9777351168.

The previous prime is 39720490669. The next prime is 39720490687. The reversal of 39720490680 is 8609402793.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39720490687) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12729367 + ... + 12732486.

Almost surely, 2^39720490680 is an apocalyptic number.

39720490680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39720490680 is an abundant number, since it is smaller than the sum of its proper divisors (88607253480).

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

39720490680 is a wasteful number, since it uses less digits than its factorization.

39720490680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25461880 (or 25461876 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 39720490680 in words is "thirty-nine billion, seven hundred twenty million, four hundred ninety thousand, six hundred eighty".