18055535892 has 12 divisors (see below), whose sum is σ = 42129583776. Its totient is φ = 6018511960.

The previous prime is 18055535879. The next prime is 18055535893. The reversal of 18055535892 is 29853555081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18055535893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752313984 + ... + 752314007.

It is an arithmetic number, because the mean of its divisors is an integer number (3510798648).

Almost surely, 2^18055535892 is an apocalyptic number.

18055535892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18055535892 is an abundant number, since it is smaller than the sum of its proper divisors (24074047884).

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

18055535892 is a wasteful number, since it uses less digits than its factorization.

18055535892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504627998 (or 1504627996 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 51.

The spelling of 18055535892 in words is "eighteen billion, fifty-five million, five hundred thirty-five thousand, eight hundred ninety-two".