18996707532 has 48 divisors (see below), whose sum is σ = 49267636992. Its totient is φ = 5647961280.

The previous prime is 18996707503. The next prime is 18996707537. The reversal of 18996707532 is 23570769981.

It is not an unprimeable number, because it can be changed into a prime (18996707537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1350688 + ... + 1364679.

It is an arithmetic number, because the mean of its divisors is an integer number (1026409104).

Almost surely, 2^18996707532 is an apocalyptic number.

18996707532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18996707532 is an abundant number, since it is smaller than the sum of its proper divisors (30270929460).

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

18996707532 is a wasteful number, since it uses less digits than its factorization.

18996707532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715438 (or 2715436 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 18996707532 in words is "eighteen billion, nine hundred ninety-six million, seven hundred seven thousand, five hundred thirty-two".