18010634532 has 48 divisors (see below), whose sum is σ = 45856141632. Its totient is φ = 5456471680.

The previous prime is 18010634531. The next prime is 18010634557. The reversal of 18010634532 is 23543601081.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 18010634493 and 18010634502.

It is not an unprimeable number, because it can be changed into a prime (18010634531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642718 + ... + 670154.

It is an arithmetic number, because the mean of its divisors is an integer number (955336284).

Almost surely, 2^18010634532 is an apocalyptic number.

18010634532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18010634532 is an abundant number, since it is smaller than the sum of its proper divisors (27845507100).

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

18010634532 is a wasteful number, since it uses less digits than its factorization.

18010634532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32428 (or 32426 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 18010634532 in words is "eighteen billion, ten million, six hundred thirty-four thousand, five hundred thirty-two".