23149622500 has 135 divisors (see below), whose sum is σ = 54078727549. Its totient is φ = 8666464000.

The previous prime is 23149622407. The next prime is 23149622513. The reversal of 23149622500 is 522694132.

The square root of 23149622500 is 152150.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 11305218276 + 11844404224 = 106326^2 + 108832^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 129327411 + ... + 129327589.

Almost surely, 2^23149622500 is an apocalyptic number.

23149622500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

23149622500 is the 152150-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23149622500

23149622500 is an abundant number, since it is smaller than the sum of its proper divisors (30929105049).

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

23149622500 is an equidigital number, since it uses as much as digits as its factorization.

23149622500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 23149622500 in words is "twenty-three billion, one hundred forty-nine million, six hundred twenty-two thousand, five hundred".