23172437740540 has 192 divisors, whose sum is σ = 55689839694720. Its totient is φ = 8021293056000.

The previous prime is 23172437740531. The next prime is 23172437740649. The reversal of 23172437740540 is 4504773427132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1481511120 + ... + 1481526760.

It is an arithmetic number, because the mean of its divisors is an integer number (290051248410).

Almost surely, 2^{23172437740540} is an apocalyptic number.

23172437740540 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 23172437740540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27844919847360).

23172437740540 is an abundant number, since it is smaller than the sum of its proper divisors (32517401954180).

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

23172437740540 is a wasteful number, since it uses less digits than its factorization.

23172437740540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18944 (or 18942 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 49.

The spelling of 23172437740540 in words is "twenty-three trillion, one hundred seventy-two billion, four hundred thirty-seven million, seven hundred forty thousand, five hundred forty".