18964153020 has 48 divisors (see below), whose sum is σ = 53892171648. Its totient is φ = 4981627200.

The previous prime is 18964152973. The next prime is 18964153051. The reversal of 18964153020 is 2035146981.

It is a self number, because there is not a number n which added to its sum of digits gives 18964153020.

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, 2354706 + ... + 2362745.

It is an arithmetic number, because the mean of its divisors is an integer number (1122753576).

Almost surely, 2^18964153020 is an apocalyptic number.

18964153020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18964153020 is an abundant number, since it is smaller than the sum of its proper divisors (34928018628).

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

18964153020 is a wasteful number, since it uses less digits than its factorization.

18964153020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717530 (or 4717528 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 18964153020 in words is "eighteen billion, nine hundred sixty-four million, one hundred fifty-three thousand, twenty".