23400020637152 has 24 divisors (see below), whose sum is σ = 47554880651712. Its totient is φ = 11322590630400.

The previous prime is 23400020637047. The next prime is 23400020637167. The reversal of 23400020637152 is 25173602000432.

It is a super-2 number, since 2×23400020637152² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11794364249 + ... + 11794366232.

It is an arithmetic number, because the mean of its divisors is an integer number (1981453360488).

Almost surely, 2^{23400020637152} is an apocalyptic number.

It is an amenable number.

23400020637152 is an abundant number, since it is smaller than the sum of its proper divisors (24154860014560).

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

23400020637152 is a wasteful number, since it uses less digits than its factorization.

23400020637152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23588730522 (or 23588730514 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

Adding to 23400020637152 its reverse (25173602000432), we get a palindrome (48573622637584).

The spelling of 23400020637152 in words is "twenty-three trillion, four hundred billion, twenty million, six hundred thirty-seven thousand, one hundred fifty-two".