39222031968 has 324 divisors, whose sum is σ = 136953917100. Its totient is φ = 10615110912.

The previous prime is 39222031921. The next prime is 39222031999. The reversal of 39222031968 is 86913022293.

It is a happy number.

39222031968 is a `hidden beast` number, since 392 + 220 + 31 + 9 + 6 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 5090583 + ... + 5098281.

It is an arithmetic number, because the mean of its divisors is an integer number (422697275).

Almost surely, 2^39222031968 is an apocalyptic number.

39222031968 is a gapful number since it is divisible by the number (38) 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 39222031968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68476958550).

39222031968 is an abundant number, since it is smaller than the sum of its proper divisors (97731885132).

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

39222031968 is a wasteful number, since it uses less digits than its factorization.

39222031968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767 (or 7730 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 39222031968 in words is "thirty-nine billion, two hundred twenty-two million, thirty-one thousand, nine hundred sixty-eight".