398432397211 has 24 divisors (see below), whose sum is σ = 424185459984. Its totient is φ = 374166112320.

The previous prime is 398432397193. The next prime is 398432397217. The reversal of 398432397211 is 112793234893.

It is not a de Polignac number, because 398432397211 - 2²³ = 398424008603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398432397217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47901625 + ... + 47909941.

It is an arithmetic number, because the mean of its divisors is an integer number (17674394166).

Almost surely, 2^398432397211 is an apocalyptic number.

398432397211 is a deficient number, since it is larger than the sum of its proper divisors (25753062773).

398432397211 is a wasteful number, since it uses less digits than its factorization.

398432397211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9499 (or 9480 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 52.

The spelling of 398432397211 in words is "three hundred ninety-eight billion, four hundred thirty-two million, three hundred ninety-seven thousand, two hundred eleven".