398113419287 has 4 divisors (see below), whose sum is σ = 398115277680. Its totient is φ = 398111560896.

The previous prime is 398113419269. The next prime is 398113419337. The reversal of 398113419287 is 782914311893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398113419287 - 2²⁶ = 398046310423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398113419787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558587 + ... + 1052732.

It is an arithmetic number, because the mean of its divisors is an integer number (99528819420).

Almost surely, 2^398113419287 is an apocalyptic number.

398113419287 is a deficient number, since it is larger than the sum of its proper divisors (1858393).

398113419287 is a wasteful number, since it uses less digits than its factorization.

398113419287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858392.

The product of its digits is 2612736, while the sum is 56.

The spelling of 398113419287 in words is "three hundred ninety-eight billion, one hundred thirteen million, four hundred nineteen thousand, two hundred eighty-seven".