39131998080 has 256 divisors, whose sum is σ = 150938588160. Its totient is φ = 8418263040.

The previous prime is 39131997997. The next prime is 39131998099. The reversal of 39131998080 is 8089913193.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142845 + ... + 314115.

It is an arithmetic number, because the mean of its divisors is an integer number (589603860).

Almost surely, 2^39131998080 is an apocalyptic number.

39131998080 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 39131998080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75469294080).

39131998080 is an abundant number, since it is smaller than the sum of its proper divisors (111806590080).

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

39131998080 is a wasteful number, since it uses less digits than its factorization.

39131998080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171317 (or 171305 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 51.

The spelling of 39131998080 in words is "thirty-nine billion, one hundred thirty-one million, nine hundred ninety-eight thousand, eighty".