23908397530 has 16 divisors (see below), whose sum is σ = 44423345664. Its totient is φ = 9254863440.

The previous prime is 23908397521. The next prime is 23908397563. The reversal of 23908397530 is 3579380932.

It is a happy number.

It is a super-2 number, since 2×23908397530² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38561622 + ... + 38562241.

It is an arithmetic number, because the mean of its divisors is an integer number (2776459104).

Almost surely, 2^23908397530 is an apocalyptic number.

23908397530 is a deficient number, since it is larger than the sum of its proper divisors (20514948134).

23908397530 is a wasteful number, since it uses less digits than its factorization.

23908397530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77123901.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 23908397530 in words is "twenty-three billion, nine hundred eight million, three hundred ninety-seven thousand, five hundred thirty".