23477874578646 has 16 divisors (see below), whose sum is σ = 47194103216304. Its totient is φ = 7786232516384.

The previous prime is 23477874578633. The next prime is 23477874578659. The reversal of 23477874578646 is 64687547877432.

It is an interprime number because it is at equal distance from previous prime (23477874578633) and next prime (23477874578659).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9931417845 + ... + 9931420208.

It is an arithmetic number, because the mean of its divisors is an integer number (2949631451019).

Almost surely, 2^{23477874578646} is an apocalyptic number.

23477874578646 is an abundant number, since it is smaller than the sum of its proper divisors (23716228637658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23477874578646 is a wasteful number, since it uses less digits than its factorization.

23477874578646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19862838255.

The product of its digits is 10621255680, while the sum is 78.

The spelling of 23477874578646 in words is "twenty-three trillion, four hundred seventy-seven billion, eight hundred seventy-four million, five hundred seventy-eight thousand, six hundred forty-six".