398552909385 has 16 divisors (see below), whose sum is σ = 671247005760. Its totient is φ = 201374101440.

The previous prime is 398552909371. The next prime is 398552909401. The reversal of 398552909385 is 583909255893.

It is not a de Polignac number, because 398552909385 - 2⁴ = 398552909369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699215346 + ... + 699215915.

It is an arithmetic number, because the mean of its divisors is an integer number (41952937860).

Almost surely, 2^398552909385 is an apocalyptic number.

It is an amenable number.

398552909385 is a deficient number, since it is larger than the sum of its proper divisors (272694096375).

398552909385 is a wasteful number, since it uses less digits than its factorization.

398552909385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398431288.

The product of its (nonzero) digits is 104976000, while the sum is 66.

The spelling of 398552909385 in words is "three hundred ninety-eight billion, five hundred fifty-two million, nine hundred nine thousand, three hundred eighty-five".