18696972960 has 384 divisors, whose sum is σ = 68076288000. Its totient is φ = 4787527680.

The previous prime is 18696972949. The next prime is 18696972967. The reversal of 18696972960 is 6927969681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18696972967) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19953612 + ... + 19954548.

It is an arithmetic number, because the mean of its divisors is an integer number (177282000).

Almost surely, 2^18696972960 is an apocalyptic number.

18696972960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18696972960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34038144000).

18696972960 is an abundant number, since it is smaller than the sum of its proper divisors (49379315040).

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

18696972960 is a wasteful number, since it uses less digits than its factorization.

18696972960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 18696972960 in words is "eighteen billion, six hundred ninety-six million, nine hundred seventy-two thousand, nine hundred sixty".