39801620196 has 72 divisors (see below), whose sum is σ = 108439007040. Its totient is φ = 12236462784.

The previous prime is 39801620189. The next prime is 39801620207. The reversal of 39801620196 is 69102610893.

It is a happy number.

39801620196 is a `hidden beast` number, since 3 + 9 + 8 + 0 + 1 + 620 + 19 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 537595 + ... + 607133.

It is an arithmetic number, because the mean of its divisors is an integer number (1506097320).

Almost surely, 2^39801620196 is an apocalyptic number.

39801620196 is a gapful number since it is divisible by the number (36) 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 39801620196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54219503520).

39801620196 is an abundant number, since it is smaller than the sum of its proper divisors (68637386844).

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

39801620196 is a wasteful number, since it uses less digits than its factorization.

39801620196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70785 (or 70780 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 39801620196 in words is "thirty-nine billion, eight hundred one million, six hundred twenty thousand, one hundred ninety-six".