18290549088 has 300 divisors, whose sum is σ = 62774947620. Its totient is φ = 5224093056.

The previous prime is 18290549027. The next prime is 18290549089. The reversal of 18290549088 is 88094509281.

18290549088 is a `hidden beast` number, since 1 + 8 + 2 + 90 + 549 + 0 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18290549089) by changing a digit.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 6221923 + ... + 6224861.

Almost surely, 2^18290549088 is an apocalyptic number.

18290549088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18290549088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31387473810).

18290549088 is an abundant number, since it is smaller than the sum of its proper divisors (44484398532).

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

18290549088 is an frugal number, since it uses more digits than its factorization.

18290549088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 18290549088 in words is "eighteen billion, two hundred ninety million, five hundred forty-nine thousand, eighty-eight".