23894258157 has 48 divisors (see below), whose sum is σ = 44193382272. Its totient is φ = 12077112960.

The previous prime is 23894258071. The next prime is 23894258161. The reversal of 23894258157 is 75185249832.

23894258157 is a `hidden beast` number, since 2 + 3 + 8 + 9 + 4 + 2 + 581 + 57 = 666.

It is not a de Polignac number, because 23894258157 - 2¹⁰ = 23894257133 is a prime.

It is a super-2 number, since 2×23894258157² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23894253157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 440298 + ... + 491579.

It is an arithmetic number, because the mean of its divisors is an integer number (920695464).

Almost surely, 2^23894258157 is an apocalyptic number.

It is an amenable number.

23894258157 is a deficient number, since it is larger than the sum of its proper divisors (20299124115).

23894258157 is a wasteful number, since it uses less digits than its factorization.

23894258157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931938 (or 931935 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 23894258157 in words is "twenty-three billion, eight hundred ninety-four million, two hundred fifty-eight thousand, one hundred fifty-seven".