23139720792 has 64 divisors (see below), whose sum is σ = 64560297600. Its totient is φ = 7679244960.

The previous prime is 23139720787. The next prime is 23139720829. The reversal of 23139720792 is 29702793132.

It is a happy number.

23139720792 is a `hidden beast` number, since 231 + 397 + 20 + 7 + 9 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186934 + ... + 284997.

It is an arithmetic number, because the mean of its divisors is an integer number (1008754650).

Almost surely, 2^23139720792 is an apocalyptic number.

It is an amenable number.

23139720792 is an abundant number, since it is smaller than the sum of its proper divisors (41420576808).

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

23139720792 is a wasteful number, since it uses less digits than its factorization.

23139720792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472173 (or 472163 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 23139720792 in words is "twenty-three billion, one hundred thirty-nine million, seven hundred twenty thousand, seven hundred ninety-two".