23722183540 has 24 divisors (see below), whose sum is σ = 54345366432. Its totient is φ = 8626248480.

The previous prime is 23722183519. The next prime is 23722183543. The reversal of 23722183540 is 4538122732.

It is a self number, because there is not a number n which added to its sum of digits gives 23722183540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23722183543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53913834 + ... + 53914273.

It is an arithmetic number, because the mean of its divisors is an integer number (2264390268).

Almost surely, 2^23722183540 is an apocalyptic number.

23722183540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23722183540 is an abundant number, since it is smaller than the sum of its proper divisors (30623182892).

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

23722183540 is a wasteful number, since it uses less digits than its factorization.

23722183540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107828127 (or 107828125 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 23722183540 in words is "twenty-three billion, seven hundred twenty-two million, one hundred eighty-three thousand, five hundred forty".