31904750196 has 144 divisors (see below), whose sum is σ = 91942276608. Its totient is φ = 9233928000.

The previous prime is 31904750183. The next prime is 31904750243. The reversal of 31904750196 is 69105740913.

31904750196 is a `hidden beast` number, since 3 + 1 + 90 + 475 + 0 + 1 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7165771 + ... + 7170221.

It is an arithmetic number, because the mean of its divisors is an integer number (638488032).

Almost surely, 2^31904750196 is an apocalyptic number.

31904750196 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 31904750196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45971138304).

31904750196 is an abundant number, since it is smaller than the sum of its proper divisors (60037526412).

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

31904750196 is a wasteful number, since it uses less digits than its factorization.

31904750196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282 (or 5277 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 31904750196 in words is "thirty-one billion, nine hundred four million, seven hundred fifty thousand, one hundred ninety-six".