398025520893 has 192 divisors, whose sum is σ = 797587200000. Its totient is φ = 190498314240.

The previous prime is 398025520889. The next prime is 398025520933.

398025520893 is a `hidden beast` number, since 3 + 9 + 8 + 0 + 2 + 552 + 0 + 89 + 3 = 666.

398025520893 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 398025520893 - 2² = 398025520889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398025520883) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 318674733 + ... + 318675981.

It is an arithmetic number, because the mean of its divisors is an integer number (4154100000).

Almost surely, 2^398025520893 is an apocalyptic number.

398025520893 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

398025520893 is an abundant number, since it is smaller than the sum of its proper divisors (399561679107).

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

398025520893 is a wasteful number, since it uses less digits than its factorization.

398025520893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209 (or 2190 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 398025520893 in words is "three hundred ninety-eight billion, twenty-five million, five hundred twenty thousand, eight hundred ninety-three".