18362801844 has 24 divisors (see below), whose sum is σ = 47607264320. Its totient is φ = 6120933912.

The previous prime is 18362801833. The next prime is 18362801881. The reversal of 18362801844 is 44810826381.

18362801844 is a `hidden beast` number, since 1 + 8 + 3 + 628 + 0 + 18 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18362801844.

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, 85012864 + ... + 85013079.

Almost surely, 2^18362801844 is an apocalyptic number.

It is an amenable number.

18362801844 is an abundant number, since it is smaller than the sum of its proper divisors (29244462476).

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

18362801844 is a wasteful number, since it uses less digits than its factorization.

18362801844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170025956 (or 170025948 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 18362801844 in words is "eighteen billion, three hundred sixty-two million, eight hundred one thousand, eight hundred forty-four".