23534780816 has 10 divisors (see below), whose sum is σ = 45598637862. Its totient is φ = 11767390400.

The previous prime is 23534780791. The next prime is 23534780827. The reversal of 23534780816 is 61808743532.

It can be written as a sum of positive squares in only one way, i.e., 18621331600 + 4913449216 = 136460^2 + 70096^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 735461885 + ... + 735461916.

Almost surely, 2^23534780816 is an apocalyptic number.

It is an amenable number.

23534780816 is a deficient number, since it is larger than the sum of its proper divisors (22063857046).

23534780816 is a wasteful number, since it uses less digits than its factorization.

23534780816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470923809 (or 1470923803 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 23534780816 in words is "twenty-three billion, five hundred thirty-four million, seven hundred eighty thousand, eight hundred sixteen".