23138169527 has 8 divisors (see below), whose sum is σ = 25269480192. Its totient is φ = 21011499000.

The previous prime is 23138169517. The next prime is 23138169589. The reversal of 23138169527 is 72596183132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23138169527 - 2⁶ = 23138169463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23138169517) 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, 1149599 + ... + 1169552.

It is an arithmetic number, because the mean of its divisors is an integer number (3158685024).

Almost surely, 2^23138169527 is an apocalyptic number.

23138169527 is a deficient number, since it is larger than the sum of its proper divisors (2131310665).

23138169527 is a wasteful number, since it uses less digits than its factorization.

23138169527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320069.

The product of its digits is 544320, while the sum is 47.

The spelling of 23138169527 in words is "twenty-three billion, one hundred thirty-eight million, one hundred sixty-nine thousand, five hundred twenty-seven".