23401647188 has 12 divisors (see below), whose sum is σ = 40990221972. Its totient is φ = 11690155200.

The previous prime is 23401647173. The next prime is 23401647193. The reversal of 23401647188 is 88174610432.

It can be written as a sum of positive squares in 2 ways, for example, as 6807570064 + 16594077124 = 82508^2 + 128818^2 .

It is a super-2 number, since 2×23401647188² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2662163 + ... + 2670938.

It is an arithmetic number, because the mean of its divisors is an integer number (3415851831).

Almost surely, 2^23401647188 is an apocalyptic number.

It is an amenable number.

23401647188 is a deficient number, since it is larger than the sum of its proper divisors (17588574784).

23401647188 is a wasteful number, since it uses less digits than its factorization.

23401647188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334202 (or 5334200 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 23401647188 in words is "twenty-three billion, four hundred one million, six hundred forty-seven thousand, one hundred eighty-eight".