31483620389 has 16 divisors (see below), whose sum is σ = 34173604080. Its totient is φ = 28832855040.

The previous prime is 31483620379. The next prime is 31483620433. The reversal of 31483620389 is 98302638413.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6489591364 + 24994029025 = 80558^2 + 158095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31483620389 is a prime.

It is a super-2 number, since 2×31483620389² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31483620379) 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 15 ways as a sum of consecutive naturals, for example, 824099 + ... + 861455.

It is an arithmetic number, because the mean of its divisors is an integer number (2135850255).

Almost surely, 2^31483620389 is an apocalyptic number.

It is an amenable number.

31483620389 is a deficient number, since it is larger than the sum of its proper divisors (2689983691).

31483620389 is a wasteful number, since it uses less digits than its factorization.

31483620389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37880.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 31483620389 in words is "thirty-one billion, four hundred eighty-three million, six hundred twenty thousand, three hundred eighty-nine".