1818418464 has 96 divisors (see below), whose sum is σ = 5615749440. Its totient is φ = 570479616.

The previous prime is 1818418457. The next prime is 1818418471. The reversal of 1818418464 is 4648148181.

1818418464 is a `hidden beast` number, since 1 + 8 + 184 + 1 + 8 + 464 = 666.

It is an interprime number because it is at equal distance from previous prime (1818418457) and next prime (1818418471).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1818418464² = 6613291420432238592, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 47214 + ... + 76589.

It is an arithmetic number, because the mean of its divisors is an integer number (58497390).

Almost surely, 2^1818418464 is an apocalyptic number.

It is an amenable number.

1818418464 is an abundant number, since it is smaller than the sum of its proper divisors (3797330976).

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

1818418464 is a wasteful number, since it uses less digits than its factorization.

1818418464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123839 (or 123825 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 1818418464 is about 42642.9180990232. The cubic root of 1818418464 is about 1220.5753946207.

The spelling of 1818418464 in words is "one billion, eight hundred eighteen million, four hundred eighteen thousand, four hundred sixty-four".