1816127152 has 20 divisors (see below), whose sum is σ = 4021424656. Its totient is φ = 778340160.

The previous prime is 1816127123. The next prime is 1816127191. The reversal of 1816127152 is 2517216181.

It is a super-2 number, since 2×1816127152² = 6596635664463262208, which contains 22 as substring.

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, 8107599 + ... + 8107822.

Almost surely, 2^1816127152 is an apocalyptic number.

It is an amenable number.

1816127152 is an abundant number, since it is smaller than the sum of its proper divisors (2205297504).

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

1816127152 is a wasteful number, since it uses less digits than its factorization.

1816127152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16215436 (or 16215430 counting only the distinct ones).

The product of its digits is 6720, while the sum is 34.

The square root of 1816127152 is about 42616.0433639727. The cubic root of 1816127152 is about 1220.0625140411.

The spelling of 1816127152 in words is "one billion, eight hundred sixteen million, one hundred twenty-seven thousand, one hundred fifty-two".