22501731348 has 36 divisors (see below), whose sum is σ = 56895098260. Its totient is φ = 7498503936.

The previous prime is 22501731313. The next prime is 22501731361. The reversal of 22501731348 is 84313710522.

It can be written as a sum of positive squares in 2 ways, for example, as 4135518864 + 18366212484 = 64308^2 + 135522^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48558 + ... + 217626.

Almost surely, 2^22501731348 is an apocalyptic number.

It is an amenable number.

22501731348 is an abundant number, since it is smaller than the sum of its proper divisors (34393366912).

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

22501731348 is a wasteful number, since it uses less digits than its factorization.

22501731348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172776 (or 172771 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 22501731348 in words is "twenty-two billion, five hundred one million, seven hundred thirty-one thousand, three hundred forty-eight".