398228725995 has 8 divisors (see below), whose sum is σ = 637165961616. Its totient is φ = 212388653856.

The previous prime is 398228725927. The next prime is 398228725997. The reversal of 398228725995 is 599527822893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 398228725995 - 2¹¹ = 398228723947 is a prime.

It is a super-2 number, since 2×398228725995² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (398228725997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13274290852 + ... + 13274290881.

It is an arithmetic number, because the mean of its divisors is an integer number (79645745202).

Almost surely, 2^398228725995 is an apocalyptic number.

398228725995 is a deficient number, since it is larger than the sum of its proper divisors (238937235621).

398228725995 is a wasteful number, since it uses less digits than its factorization.

398228725995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26548581741.

The product of its digits is 195955200, while the sum is 69.

The spelling of 398228725995 in words is "three hundred ninety-eight billion, two hundred twenty-eight million, seven hundred twenty-five thousand, nine hundred ninety-five".