22631905746 has 96 divisors (see below), whose sum is σ = 54665994240. Its totient is φ = 6733992672.

The previous prime is 22631905697. The next prime is 22631905781. The reversal of 22631905746 is 64750913622.

22631905746 is a `hidden beast` number, since 2 + 2 + 63 + 19 + 0 + 574 + 6 = 666.

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, 505551 + ... + 548493.

It is an arithmetic number, because the mean of its divisors is an integer number (569437440).

Almost surely, 2^22631905746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22631905746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27332997120).

22631905746 is an abundant number, since it is smaller than the sum of its proper divisors (32034088494).

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

22631905746 is a wasteful number, since it uses less digits than its factorization.

22631905746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43060 (or 43057 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 22631905746 in words is "twenty-two billion, six hundred thirty-one million, nine hundred five thousand, seven hundred forty-six".