18354376980 has 48 divisors (see below), whose sum is σ = 57102507840. Its totient is φ = 4894500384.

The previous prime is 18354376967. The next prime is 18354377023. The reversal of 18354376980 is 8967345381.

18354376980 is a `hidden beast` number, since 1 + 8 + 3 + 543 + 7 + 6 + 98 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16994254 + ... + 16995333.

It is an arithmetic number, because the mean of its divisors is an integer number (1189635580).

Almost surely, 2^18354376980 is an apocalyptic number.

18354376980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18354376980 is an abundant number, since it is smaller than the sum of its proper divisors (38748130860).

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

18354376980 is a wasteful number, since it uses less digits than its factorization.

18354376980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33989605 (or 33989597 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 18354376980 in words is "eighteen billion, three hundred fifty-four million, three hundred seventy-six thousand, nine hundred eighty".