23477139309 has 16 divisors (see below), whose sum is σ = 35485016000. Its totient is φ = 13687076736.

The previous prime is 23477139307. The next prime is 23477139379. The reversal of 23477139309 is 90393177432.

It is not a de Polignac number, because 23477139309 - 2¹ = 23477139307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23477139307) 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, 15840784 + ... + 15842265.

It is an arithmetic number, because the mean of its divisors is an integer number (2217813500).

Almost surely, 2^23477139309 is an apocalyptic number.

It is an amenable number.

23477139309 is a deficient number, since it is larger than the sum of its proper divisors (12007876691).

23477139309 is a wasteful number, since it uses less digits than its factorization.

23477139309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31683084.

The product of its (nonzero) digits is 857304, while the sum is 48.

The spelling of 23477139309 in words is "twenty-three billion, four hundred seventy-seven million, one hundred thirty-nine thousand, three hundred nine".