18965147632 has 40 divisors (see below), whose sum is σ = 38027923200. Its totient is φ = 9151763712.

The previous prime is 18965147611. The next prime is 18965147633. The reversal of 18965147632 is 23674156981.

It is a self number, because there is not a number n which added to its sum of digits gives 18965147632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18965147633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328758 + ... + 1342954.

It is an arithmetic number, because the mean of its divisors is an integer number (950698080).

Almost surely, 2^18965147632 is an apocalyptic number.

It is an amenable number.

18965147632 is an abundant number, since it is smaller than the sum of its proper divisors (19062775568).

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

18965147632 is a wasteful number, since it uses less digits than its factorization.

18965147632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17113 (or 17107 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The spelling of 18965147632 in words is "eighteen billion, nine hundred sixty-five million, one hundred forty-seven thousand, six hundred thirty-two".