18134775552 has 72 divisors (see below), whose sum is σ = 49929319440. Its totient is φ = 5836472320.

The previous prime is 18134775521. The next prime is 18134775577. The reversal of 18134775552 is 25557743181.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384849 + ... + 429392.

It is an arithmetic number, because the mean of its divisors is an integer number (693462770).

Almost surely, 2^18134775552 is an apocalyptic number.

18134775552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18134775552 is an abundant number, since it is smaller than the sum of its proper divisors (31794543888).

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

18134775552 is an equidigital number, since it uses as much as digits as its factorization.

18134775552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814289 (or 814275 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 48.

The spelling of 18134775552 in words is "eighteen billion, one hundred thirty-four million, seven hundred seventy-five thousand, five hundred fifty-two".