398397853211 has 4 divisors (see below), whose sum is σ = 402505047672. Its totient is φ = 394290658752.

The previous prime is 398397853187. The next prime is 398397853213. The reversal of 398397853211 is 112358793893.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112358793893 = 24337 ⋅4616789.

It is a cyclic number.

It is not a de Polignac number, because 398397853211 - 2³⁴ = 381217984027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398397853213) 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, 2053597085 + ... + 2053597278.

It is an arithmetic number, because the mean of its divisors is an integer number (100626261918).

Almost surely, 2^398397853211 is an apocalyptic number.

398397853211 is a deficient number, since it is larger than the sum of its proper divisors (4107194461).

398397853211 is an equidigital number, since it uses as much as digits as its factorization.

398397853211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107194460.

The product of its digits is 9797760, while the sum is 59.

The spelling of 398397853211 in words is "three hundred ninety-eight billion, three hundred ninety-seven million, eight hundred fifty-three thousand, two hundred eleven".