23947784828 has 48 divisors (see below), whose sum is σ = 49245235200. Its totient is φ = 10076193600.

The previous prime is 23947784789. The next prime is 23947784837. The reversal of 23947784828 is 82848774932.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350303 + ... + 413046.

It is an arithmetic number, because the mean of its divisors is an integer number (1025942400).

Almost surely, 2^23947784828 is an apocalyptic number.

It is an amenable number.

23947784828 is an abundant number, since it is smaller than the sum of its proper divisors (25297450372).

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

23947784828 is a wasteful number, since it uses less digits than its factorization.

23947784828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763418 (or 763416 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 62.

The spelling of 23947784828 in words is "twenty-three billion, nine hundred forty-seven million, seven hundred eighty-four thousand, eight hundred twenty-eight".