31328587760863 has 2 divisors, whose sum is σ = 31328587760864. Its totient is φ = 31328587760862.

The previous prime is 31328587760861. The next prime is 31328587760929. The reversal of 31328587760863 is 36806778582313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31328587760863 - 2¹ = 31328587760861 is a prime.

It is a super-2 number, since 2×31328587760863² (a number of 28 digits) contains 22 as substring.

Together with 31328587760861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31328587760861) 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, 15664293880431 + 15664293880432.

It is an arithmetic number, because the mean of its divisors is an integer number (15664293880432).

Almost surely, 2^{31328587760863} is an apocalyptic number.

31328587760863 is a deficient number, since it is larger than the sum of its proper divisors (1).

31328587760863 is an equidigital number, since it uses as much as digits as its factorization.

31328587760863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243855360, while the sum is 67.

The spelling of 31328587760863 in words is "thirty-one trillion, three hundred twenty-eight billion, five hundred eighty-seven million, seven hundred sixty thousand, eight hundred sixty-three".