31838458465 has 16 divisors (see below), whose sum is σ = 41685920640. Its totient is φ = 23151640320.

The previous prime is 31838458439. The next prime is 31838458471. The reversal of 31838458465 is 56485483813.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-31838458465 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

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, 341641 + ... + 424729.

It is an arithmetic number, because the mean of its divisors is an integer number (2605370040).

Almost surely, 2^31838458465 is an apocalyptic number.

It is an amenable number.

31838458465 is a deficient number, since it is larger than the sum of its proper divisors (9847462175).

31838458465 is a wasteful number, since it uses less digits than its factorization.

31838458465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90072.

The product of its digits is 11059200, while the sum is 55.

It can be divided in two parts, 3183 and 8458465, that added together give a palindrome (8461648).

The spelling of 31838458465 in words is "thirty-one billion, eight hundred thirty-eight million, four hundred fifty-eight thousand, four hundred sixty-five".