23709930642 has 12 divisors (see below), whose sum is σ = 51371516430. Its totient is φ = 7903310208.

The previous prime is 23709930641. The next prime is 23709930661. The reversal of 23709930642 is 24603990732.

It can be written as a sum of positive squares in only one way, i.e., 19608680961 + 4101249681 = 140031^2 + 64041^2 .

It is a super-2 number, since 2×23709930642² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23709930641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 658609167 + ... + 658609202.

Almost surely, 2^23709930642 is an apocalyptic number.

23709930642 is an abundant number, since it is smaller than the sum of its proper divisors (27661585788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23709930642 is a wasteful number, since it uses less digits than its factorization.

23709930642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317218377 (or 1317218374 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 23709930642 in words is "twenty-three billion, seven hundred nine million, nine hundred thirty thousand, six hundred forty-two".