23078639464 has 8 divisors (see below), whose sum is σ = 43272449010. Its totient is φ = 11539319728.

The previous prime is 23078639417. The next prime is 23078639491. The reversal of 23078639464 is 46493687032.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22878982564 + 199656900 = 151258^2 + 14130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1442414959 + ... + 1442414974.

Almost surely, 2^23078639464 is an apocalyptic number.

It is an amenable number.

23078639464 is a deficient number, since it is larger than the sum of its proper divisors (20193809546).

23078639464 is a wasteful number, since it uses less digits than its factorization.

23078639464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884829939 (or 2884829935 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 23078639464 in words is "twenty-three billion, seventy-eight million, six hundred thirty-nine thousand, four hundred sixty-four".