23428700649 has 12 divisors (see below), whose sum is σ = 34269830400. Its totient is φ = 15421422744.

The previous prime is 23428700627. The next prime is 23428700677. The reversal of 23428700649 is 94600782432.

It is not a de Polignac number, because 23428700649 - 2²⁴ = 23411923433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23428700149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16475169 + ... + 16476590.

It is an arithmetic number, because the mean of its divisors is an integer number (2855819200).

Almost surely, 2^23428700649 is an apocalyptic number.

It is an amenable number.

23428700649 is a deficient number, since it is larger than the sum of its proper divisors (10841129751).

23428700649 is a wasteful number, since it uses less digits than its factorization.

23428700649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32951844 (or 32951841 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 23428700649 in words is "twenty-three billion, four hundred twenty-eight million, seven hundred thousand, six hundred forty-nine".