30397734180 has 72 divisors (see below), whose sum is σ = 100588872384. Its totient is φ = 7369147200.

The previous prime is 30397734179. The next prime is 30397734181. The reversal of 30397734180 is 8143779303.

It is an interprime number because it is at equal distance from previous prime (30397734179) and next prime (30397734181).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (30397734181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7674216 + ... + 7678175.

It is an arithmetic number, because the mean of its divisors is an integer number (1397067672).

Almost surely, 2^30397734180 is an apocalyptic number.

30397734180 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30397734180 is an abundant number, since it is smaller than the sum of its proper divisors (70191138204).

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

30397734180 is a wasteful number, since it uses less digits than its factorization.

30397734180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15352417 (or 15352412 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 30397734180 in words is "thirty billion, three hundred ninety-seven million, seven hundred thirty-four thousand, one hundred eighty".