23354172500 has 60 divisors (see below), whose sum is σ = 51291372132. Its totient is φ = 9301344000.

The previous prime is 23354172473. The next prime is 23354172511. The reversal of 23354172500 is 527145332.

It can be written as a sum of positive squares in 10 ways, for example, as 23226979216 + 127193284 = 152404^2 + 11278^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 562454 + ... + 602546.

Almost surely, 2^23354172500 is an apocalyptic number.

23354172500 is a gapful number since it is divisible by the number (20) 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 23354172500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25645686066).

23354172500 is an abundant number, since it is smaller than the sum of its proper divisors (27937199632).

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

23354172500 is a wasteful number, since it uses less digits than its factorization.

23354172500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40350 (or 40333 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The spelling of 23354172500 in words is "twenty-three billion, three hundred fifty-four million, one hundred seventy-two thousand, five hundred".