31405444014 has 64 divisors (see below), whose sum is σ = 76518604800. Its totient is φ = 8393100768.

The previous prime is 31405443997. The next prime is 31405444043. The reversal of 31405444014 is 41044450413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186042 + ... + 312125.

It is an arithmetic number, because the mean of its divisors is an integer number (1195603200).

Almost surely, 2^31405444014 is an apocalyptic number.

31405444014 is an abundant number, since it is smaller than the sum of its proper divisors (45113160786).

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

31405444014 is a wasteful number, since it uses less digits than its factorization.

31405444014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498277.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 31405444014 its reverse (41044450413), we get a palindrome (72449894427).

The spelling of 31405444014 in words is "thirty-one billion, four hundred five million, four hundred forty-four thousand, fourteen".