398117419057 has 8 divisors (see below), whose sum is σ = 399723246720. Its totient is φ = 396512597520.

The previous prime is 398117419031. The next prime is 398117419067. The reversal of 398117419057 is 750914711893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398117419057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 398117418989 and 398117419007.

It is not an unprimeable number, because it can be changed into a prime (398117419067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546543 + ... + 1046395.

It is an arithmetic number, because the mean of its divisors is an integer number (49965405840).

Almost surely, 2^398117419057 is an apocalyptic number.

It is an amenable number.

398117419057 is a deficient number, since it is larger than the sum of its proper divisors (1605827663).

398117419057 is a wasteful number, since it uses less digits than its factorization.

398117419057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503063.

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 398117419057 in words is "three hundred ninety-eight billion, one hundred seventeen million, four hundred nineteen thousand, fifty-seven".