23456720422 has 16 divisors (see below), whose sum is σ = 35472222720. Its totient is φ = 11632699008.

The previous prime is 23456720393. The next prime is 23456720423. The reversal of 23456720422 is 22402765432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23456720423) 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, 1049904 + ... + 1072012.

It is an arithmetic number, because the mean of its divisors is an integer number (2217013920).

Almost surely, 2^23456720422 is an apocalyptic number.

23456720422 is a deficient number, since it is larger than the sum of its proper divisors (12015502298).

23456720422 is a wasteful number, since it uses less digits than its factorization.

23456720422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415.

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 23456720422 in words is "twenty-three billion, four hundred fifty-six million, seven hundred twenty thousand, four hundred twenty-two".