23173652040 has 256 divisors, whose sum is σ = 89019371520. Its totient is φ = 4685091840.

The previous prime is 23173651957. The next prime is 23173652059. The reversal of 23173652040 is 4025637132.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 23173651992 and 23173652010.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 307989 + ... + 375771.

It is an arithmetic number, because the mean of its divisors is an integer number (347731920).

Almost surely, 2^23173652040 is an apocalyptic number.

23173652040 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 23173652040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44509685760).

23173652040 is an abundant number, since it is smaller than the sum of its proper divisors (65845719480).

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

23173652040 is a wasteful number, since it uses less digits than its factorization.

23173652040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67852 (or 67848 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 23173652040 in words is "twenty-three billion, one hundred seventy-three million, six hundred fifty-two thousand, forty".