31982884056749 has 2 divisors, whose sum is σ = 31982884056750. Its totient is φ = 31982884056748.

The previous prime is 31982884056719. The next prime is 31982884056821. The reversal of 31982884056749 is 94765048828913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19357298494249 + 12625585562500 = 4399693^2 + 3553250^2 .

It is a cyclic number.

It is not a de Polignac number, because 31982884056749 - 2¹² = 31982884052653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31982884056719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15991442028374 + 15991442028375.

It is an arithmetic number, because the mean of its divisors is an integer number (15991442028375).

It is a 1-persistent number, because it is pandigital, but 2⋅31982884056749 = 63965768113498 is not.

Almost surely, 2^{31982884056749} is an apocalyptic number.

It is an amenable number.

31982884056749 is a deficient number, since it is larger than the sum of its proper divisors (1).

31982884056749 is an equidigital number, since it uses as much as digits as its factorization.

31982884056749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 836075520, while the sum is 74.

The spelling of 31982884056749 in words is "thirty-one trillion, nine hundred eighty-two billion, eight hundred eighty-four million, fifty-six thousand, seven hundred forty-nine".