31444339398 has 16 divisors (see below), whose sum is σ = 62941056816. Its totient is φ = 10472716800.

The previous prime is 31444339397. The next prime is 31444339463. The reversal of 31444339398 is 89393344413.

It is a self number, because there is not a number n which added to its sum of digits gives 31444339398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444339397) 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, 2174611 + ... + 2189022.

It is an arithmetic number, because the mean of its divisors is an integer number (3933816051).

Almost surely, 2^31444339398 is an apocalyptic number.

31444339398 is an abundant number, since it is smaller than the sum of its proper divisors (31496717418).

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

31444339398 is a wasteful number, since it uses less digits than its factorization.

31444339398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4364839.

The product of its digits is 3359232, while the sum is 51.

The spelling of 31444339398 in words is "thirty-one billion, four hundred forty-four million, three hundred thirty-nine thousand, three hundred ninety-eight".