398889611575 has 48 divisors (see below), whose sum is σ = 628404668416. Its totient is φ = 244339286400.

The previous prime is 398889611551. The next prime is 398889611587. The reversal of 398889611575 is 575116988893.

It is not a de Polignac number, because 398889611575 - 2¹⁷ = 398889480503 is a prime.

It is a super-2 number, since 2×398889611575² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2757477 + ... + 2898526.

Almost surely, 2^398889611575 is an apocalyptic number.

398889611575 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

398889611575 is a deficient number, since it is larger than the sum of its proper divisors (229515056841).

398889611575 is a wasteful number, since it uses less digits than its factorization.

398889611575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656064 (or 5656059 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 70.

The spelling of 398889611575 in words is "three hundred ninety-eight billion, eight hundred eighty-nine million, six hundred eleven thousand, five hundred seventy-five".