23977961530 has 32 divisors (see below), whose sum is σ = 45639272448. Its totient is φ = 9055401600.

The previous prime is 23977961521. The next prime is 23977961537. The reversal of 23977961530 is 3516977932.

It is not an unprimeable number, because it can be changed into a prime (23977961537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930562 + ... + 955981.

It is an arithmetic number, because the mean of its divisors is an integer number (1426227264).

Almost surely, 2^23977961530 is an apocalyptic number.

23977961530 is a deficient number, since it is larger than the sum of its proper divisors (21661310918).

23977961530 is a wasteful number, since it uses less digits than its factorization.

23977961530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886622.

The product of its (nonzero) digits is 2143260, while the sum is 52.

The spelling of 23977961530 in words is "twenty-three billion, nine hundred seventy-seven million, nine hundred sixty-one thousand, five hundred thirty".