398273584958 has 4 divisors (see below), whose sum is σ = 597410377440. Its totient is φ = 199136792478.

The previous prime is 398273584949. The next prime is 398273584981. The reversal of 398273584958 is 859485372893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 859485372893 = 7 ⋅122783624699.

It is a junction number, because it is equal to n+sod(n) for n = 398273584891 and 398273584900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99568396238 + ... + 99568396241.

It is an arithmetic number, because the mean of its divisors is an integer number (149352594360).

Almost surely, 2^398273584958 is an apocalyptic number.

398273584958 is a deficient number, since it is larger than the sum of its proper divisors (199136792482).

398273584958 is a wasteful number, since it uses less digits than its factorization.

398273584958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199136792481.

The product of its digits is 522547200, while the sum is 71.

The spelling of 398273584958 in words is "three hundred ninety-eight billion, two hundred seventy-three million, five hundred eighty-four thousand, nine hundred fifty-eight".