39680140680 has 320 divisors, whose sum is σ = 135515160000. Its totient is φ = 10455609600.

The previous prime is 39680140603. The next prime is 39680140699. The reversal of 39680140680 is 8604108693.

39680140680 is a `hidden beast` number, since 3 + 96 + 80 + 1 + 406 + 80 = 666.

39680140680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 79519071 + ... + 79519569.

It is an arithmetic number, because the mean of its divisors is an integer number (423484875).

Almost surely, 2^39680140680 is an apocalyptic number.

39680140680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39680140680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67757580000).

39680140680 is an abundant number, since it is smaller than the sum of its proper divisors (95835019320).

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

39680140680 is an equidigital number, since it uses as much as digits as its factorization.

39680140680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 39680140680 in words is "thirty-nine billion, six hundred eighty million, one hundred forty thousand, six hundred eighty".