18148534632 has 48 divisors (see below), whose sum is σ = 50480728740. Its totient is φ = 5886010368.

The previous prime is 18148534601. The next prime is 18148534681. The reversal of 18148534632 is 23643584181.

18148534632 is a `hidden beast` number, since 1 + 8 + 1 + 4 + 8 + 5 + 3 + 4 + 632 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17251771716 + 896762916 = 131346^2 + 29946^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3403593 + ... + 3408920.

Almost surely, 2^18148534632 is an apocalyptic number.

18148534632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18148534632 is an abundant number, since it is smaller than the sum of its proper divisors (32332194108).

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

18148534632 is a wasteful number, since it uses less digits than its factorization.

18148534632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812562 (or 6812555 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 18148534632 in words is "eighteen billion, one hundred forty-eight million, five hundred thirty-four thousand, six hundred thirty-two".