23678428501 has 32 divisors (see below), whose sum is σ = 30958188800. Its totient is φ = 17585579520.

The previous prime is 23678428483. The next prime is 23678428511. The reversal of 23678428501 is 10582487632.

It is a 5-Lehmer number, since φ(23678428501) divides (23678428501-1)⁵.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23678428501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23678428511) 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, 125641 + ... + 251281.

It is an arithmetic number, because the mean of its divisors is an integer number (967443400).

It is a Poulet number, since it divides 2^23678428500-1.

Almost surely, 2^23678428501 is an apocalyptic number.

23678428501 is the 125641-st pentagonal number.

It is an amenable number.

23678428501 is a deficient number, since it is larger than the sum of its proper divisors (7279760299).

23678428501 is a wasteful number, since it uses less digits than its factorization.

23678428501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125789.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 23678428501 in words is "twenty-three billion, six hundred seventy-eight million, four hundred twenty-eight thousand, five hundred one".