23428102491 has 6 divisors (see below), whose sum is σ = 33840592500. Its totient is φ = 15618734988.

The previous prime is 23428102469. The next prime is 23428102493. The reversal of 23428102491 is 19420182432.

23428102491 is a `hidden beast` number, since 23 + 42 + 8 + 102 + 491 = 666.

It is not a de Polignac number, because 23428102491 - 2⁵ = 23428102459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23428102493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1301561241 + ... + 1301561258.

It is an arithmetic number, because the mean of its divisors is an integer number (5640098750).

Almost surely, 2^23428102491 is an apocalyptic number.

23428102491 is a deficient number, since it is larger than the sum of its proper divisors (10412490009).

23428102491 is a wasteful number, since it uses less digits than its factorization.

23428102491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603122505 (or 2603122502 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 23428102491 in words is "twenty-three billion, four hundred twenty-eight million, one hundred two thousand, four hundred ninety-one".