23509021408 has 12 divisors (see below), whose sum is σ = 46283385960. Its totient is φ = 11754510688.

The previous prime is 23509021379. The next prime is 23509021433. The reversal of 23509021408 is 80412090532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367328428 + ... + 367328491.

It is an arithmetic number, because the mean of its divisors is an integer number (3856948830).

Almost surely, 2^23509021408 is an apocalyptic number.

It is an amenable number.

23509021408 is a deficient number, since it is larger than the sum of its proper divisors (22774364552).

23509021408 is an equidigital number, since it uses as much as digits as its factorization.

23509021408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734656929 (or 734656921 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 23509021408 in words is "twenty-three billion, five hundred nine million, twenty-one thousand, four hundred eight".