31013781446 has 8 divisors (see below), whose sum is σ = 46540826640. Its totient is φ = 15500172568.

The previous prime is 31013781439. The next prime is 31013781457. The reversal of 31013781446 is 64418731013.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353306 + ... + 3362541.

It is an arithmetic number, because the mean of its divisors is an integer number (5817603330).

Almost surely, 2^31013781446 is an apocalyptic number.

31013781446 is a deficient number, since it is larger than the sum of its proper divisors (15527045194).

31013781446 is a wasteful number, since it uses less digits than its factorization.

31013781446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718158.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 31013781446 in words is "thirty-one billion, thirteen million, seven hundred eighty-one thousand, four hundred forty-six".