31948661299 has 2 divisors, whose sum is σ = 31948661300. Its totient is φ = 31948661298.

The previous prime is 31948661263. The next prime is 31948661377. The reversal of 31948661299 is 99216684913.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31948661299 - 2⁹ = 31948660787 is a prime.

It is not a weakly prime, because it can be changed into another prime (31948661209) 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 as a sum of consecutive naturals, namely, 15974330649 + 15974330650.

It is an arithmetic number, because the mean of its divisors is an integer number (15974330650).

Almost surely, 2^31948661299 is an apocalyptic number.

31948661299 is a deficient number, since it is larger than the sum of its proper divisors (1).

31948661299 is an equidigital number, since it uses as much as digits as its factorization.

31948661299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5038848, while the sum is 58.

The spelling of 31948661299 in words is "thirty-one billion, nine hundred forty-eight million, six hundred sixty-one thousand, two hundred ninety-nine".