30557997448398 has 80 divisors (see below), whose sum is σ = 78376046474880. Its totient is φ = 8717277891024.

The previous prime is 30557997448291. The next prime is 30557997448469. The reversal of 30557997448398 is 89384479975503.

30557997448398 is a `hidden beast` number, since 3 + 0 + 5 + 57 + 9 + 97 + 448 + 39 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20225028 + ... + 21683351.

It is an arithmetic number, because the mean of its divisors is an integer number (979700580936).

Almost surely, 2^{30557997448398} is an apocalyptic number.

30557997448398 is an abundant number, since it is smaller than the sum of its proper divisors (47818049026482).

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

30557997448398 is a wasteful number, since it uses less digits than its factorization.

30557997448398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41909043 (or 41909034 counting only the distinct ones).

The product of its (nonzero) digits is 8230118400, while the sum is 81.

The spelling of 30557997448398 in words is "thirty trillion, five hundred fifty-seven billion, nine hundred ninety-seven million, four hundred forty-eight thousand, three hundred ninety-eight".