23428977884646 has 64 divisors (see below), whose sum is σ = 47577139873536. Its totient is φ = 7690982659200.

The previous prime is 23428977884633. The next prime is 23428977884647. The reversal of 23428977884646 is 64648877982432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23428977884647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48795081 + ... + 49272891.

It is an arithmetic number, because the mean of its divisors is an integer number (743392810524).

Almost surely, 2^{23428977884646} is an apocalyptic number.

23428977884646 is an abundant number, since it is smaller than the sum of its proper divisors (24148161988890).

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

23428977884646 is a wasteful number, since it uses less digits than its factorization.

23428977884646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478437.

The product of its digits is 6242697216, while the sum is 78.

The spelling of 23428977884646 in words is "twenty-three trillion, four hundred twenty-eight billion, nine hundred seventy-seven million, eight hundred eighty-four thousand, six hundred forty-six".