23578157281 has 8 divisors (see below), whose sum is σ = 27067303424. Its totient is φ = 20119220640.

The previous prime is 23578157263. The next prime is 23578157297. The reversal of 23578157281 is 18275187532.

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 23578157281 - 2⁵ = 23578157249 is a prime.

It is a super-2 number, since 2×23578157281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23578157261) 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, 7550700 + ... + 7553821.

It is an arithmetic number, because the mean of its divisors is an integer number (3383412928).

Almost surely, 2^23578157281 is an apocalyptic number.

It is an amenable number.

23578157281 is a deficient number, since it is larger than the sum of its proper divisors (3489146143).

23578157281 is a wasteful number, since it uses less digits than its factorization.

23578157281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15104751.

The product of its digits is 940800, while the sum is 49.

The spelling of 23578157281 in words is "twenty-three billion, five hundred seventy-eight million, one hundred fifty-seven thousand, two hundred eighty-one".