398201961816036 has 72 divisors (see below), whose sum is σ = 1218029530273920. Its totient is φ = 107079519142656.

The previous prime is 398201961816031. The next prime is 398201961816049. The reversal of 398201961816036 is 630618169102893.

398201961816036 is a `hidden beast` number, since 3 + 9 + 8 + 2 + 0 + 1 + 9 + 6 + 18 + 1 + 603 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (398201961816031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46475481456 + ... + 46475490023.

It is an arithmetic number, because the mean of its divisors is an integer number (16917076809360).

Almost surely, 2^{398201961816036} is an apocalyptic number.

398201961816036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

398201961816036 is an abundant number, since it is smaller than the sum of its proper divisors (819827568457884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398201961816036 is a wasteful number, since it uses less digits than its factorization.

398201961816036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92950971513 (or 92950971508 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 398201961816036 in words is "three hundred ninety-eight trillion, two hundred one billion, nine hundred sixty-one million, eight hundred sixteen thousand, thirty-six".