398826141621 has 16 divisors (see below), whose sum is σ = 584093207040. Its totient is φ = 240938446320.

The previous prime is 398826141611. The next prime is 398826141631. The reversal of 398826141621 is 126141628893.

It is an interprime number because it is at equal distance from previous prime (398826141611) and next prime (398826141631).

It is not a de Polignac number, because 398826141621 - 2¹⁵ = 398826108853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398826141601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152106295 + ... + 152108916.

It is an arithmetic number, because the mean of its divisors is an integer number (36505825440).

Almost surely, 2^398826141621 is an apocalyptic number.

It is an amenable number.

398826141621 is a deficient number, since it is larger than the sum of its proper divisors (185267065419).

398826141621 is a wasteful number, since it uses less digits than its factorization.

398826141621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304215256.

The product of its digits is 995328, while the sum is 51.

The spelling of 398826141621 in words is "three hundred ninety-eight billion, eight hundred twenty-six million, one hundred forty-one thousand, six hundred twenty-one".