18976895850 has 72 divisors (see below), whose sum is σ = 51730126560. Its totient is φ = 4600455200.

The previous prime is 18976895783. The next prime is 18976895887. The reversal of 18976895850 is 5859867981.

It is a happy number.

It is a super-2 number, since 2×18976895850² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 504630 + ... + 540929.

It is an arithmetic number, because the mean of its divisors is an integer number (718473980).

Almost surely, 2^18976895850 is an apocalyptic number.

18976895850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18976895850 is an abundant number, since it is smaller than the sum of its proper divisors (32753230710).

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

18976895850 is a wasteful number, since it uses less digits than its factorization.

18976895850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045596 (or 1045580 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 66.

The spelling of 18976895850 in words is "eighteen billion, nine hundred seventy-six million, eight hundred ninety-five thousand, eight hundred fifty".