23020778936 has 64 divisors (see below), whose sum is σ = 48514118400. Its totient is φ = 10187831808.

The previous prime is 23020778909. The next prime is 23020778941. The reversal of 23020778936 is 63987702032.

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 15 ways as a sum of consecutive naturals, for example, 73760 + ... + 226896.

It is an arithmetic number, because the mean of its divisors is an integer number (758033100).

Almost surely, 2^23020778936 is an apocalyptic number.

It is an amenable number.

23020778936 is an abundant number, since it is smaller than the sum of its proper divisors (25493339464).

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

23020778936 is a wasteful number, since it uses less digits than its factorization.

23020778936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153228 (or 153224 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 23020778936 in words is "twenty-three billion, twenty million, seven hundred seventy-eight thousand, nine hundred thirty-six".