31404044663 has 2 divisors, whose sum is σ = 31404044664. Its totient is φ = 31404044662.

The previous prime is 31404044641. The next prime is 31404044671. The reversal of 31404044663 is 36644040413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31404044663 - 2¹⁶ = 31403979127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31404044363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15702022331 + 15702022332.

It is an arithmetic number, because the mean of its divisors is an integer number (15702022332).

Almost surely, 2^31404044663 is an apocalyptic number.

31404044663 is a deficient number, since it is larger than the sum of its proper divisors (1).

31404044663 is an equidigital number, since it uses as much as digits as its factorization.

31404044663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 35.

The spelling of 31404044663 in words is "thirty-one billion, four hundred four million, forty-four thousand, six hundred sixty-three".