23278947944 has 32 divisors (see below), whose sum is σ = 50045983680. Its totient is φ = 9944187264.

The previous prime is 23278947929. The next prime is 23278948037. The reversal of 23278947944 is 44974987232.

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, 659837 + ... + 694220.

It is an arithmetic number, because the mean of its divisors is an integer number (1563936990).

Almost surely, 2^23278947944 is an apocalyptic number.

It is an amenable number.

23278947944 is an abundant number, since it is smaller than the sum of its proper divisors (26767035736).

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

23278947944 is a wasteful number, since it uses less digits than its factorization.

23278947944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354377 (or 1354373 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 59.

The spelling of 23278947944 in words is "twenty-three billion, two hundred seventy-eight million, nine hundred forty-seven thousand, nine hundred forty-four".