18379470484 has 12 divisors (see below), whose sum is σ = 32174118900. Its totient is φ = 9186865088.

The previous prime is 18379470427. The next prime is 18379470511. The reversal of 18379470484 is 48407497381.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15423156100 + 2956314384 = 124190^2 + 54372^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703099 + ... + 728770.

It is an arithmetic number, because the mean of its divisors is an integer number (2681176575).

Almost surely, 2^18379470484 is an apocalyptic number.

It is an amenable number.

18379470484 is a deficient number, since it is larger than the sum of its proper divisors (13794648416).

18379470484 is a wasteful number, since it uses less digits than its factorization.

18379470484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435082 (or 1435080 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 18379470484 in words is "eighteen billion, three hundred seventy-nine million, four hundred seventy thousand, four hundred eighty-four".