23400373668 has 96 divisors (see below), whose sum is σ = 63475399680. Its totient is φ = 6571670400.

The previous prime is 23400373651. The next prime is 23400373669. The reversal of 23400373668 is 86637300432.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (23400373669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1169355 + ... + 1189197.

It is an arithmetic number, because the mean of its divisors is an integer number (661202080).

Almost surely, 2^23400373668 is an apocalyptic number.

23400373668 is a gapful number since it is divisible by the number (28) 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 23400373668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31737699840).

23400373668 is an abundant number, since it is smaller than the sum of its proper divisors (40075026012).

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

23400373668 is a wasteful number, since it uses less digits than its factorization.

23400373668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20097 (or 20095 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 23400373668 in words is "twenty-three billion, four hundred million, three hundred seventy-three thousand, six hundred sixty-eight".