18106450524 has 18 divisors (see below), whose sum is σ = 45769083360. Its totient is φ = 6035483496.

The previous prime is 18106450511. The next prime is 18106450543. The reversal of 18106450524 is 42505460181.

It is a happy number.

18106450524 is a `hidden beast` number, since 1 + 8 + 1 + 0 + 645 + 0 + 5 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 502956959 = 18106450524 / (1 + 8 + 1 + 0 + 6 + 4 + 5 + 0 + 5 + 2 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251478444 + ... + 251478515.

Almost surely, 2^18106450524 is an apocalyptic number.

It is an amenable number.

18106450524 is an abundant number, since it is smaller than the sum of its proper divisors (27662632836).

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

18106450524 is a wasteful number, since it uses less digits than its factorization.

18106450524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502956969 (or 502956964 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 18106450524 in words is "eighteen billion, one hundred six million, four hundred fifty thousand, five hundred twenty-four".