18766973760 has 112 divisors (see below), whose sum is σ = 59620903872. Its totient is φ = 5001523200.

The previous prime is 18766973749. The next prime is 18766973779. The reversal of 18766973760 is 6737966781.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 18766973694 and 18766973703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1925700 + ... + 1935420.

Almost surely, 2^18766973760 is an apocalyptic number.

18766973760 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 18766973760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29810451936).

18766973760 is an abundant number, since it is smaller than the sum of its proper divisors (40853930112).

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

18766973760 is a wasteful number, since it uses less digits than its factorization.

18766973760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11752 (or 11742 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 60.

The spelling of 18766973760 in words is "eighteen billion, seven hundred sixty-six million, nine hundred seventy-three thousand, seven hundred sixty".