31063818479 has 2 divisors, whose sum is σ = 31063818480. Its totient is φ = 31063818478.

The previous prime is 31063818449. The next prime is 31063818481. The reversal of 31063818479 is 97481836013.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31063818479 is a prime.

Together with 31063818481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31063818439) by changing a digit.

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 as a sum of consecutive naturals, namely, 15531909239 + 15531909240.

It is an arithmetic number, because the mean of its divisors is an integer number (15531909240).

Almost surely, 2^31063818479 is an apocalyptic number.

31063818479 is a deficient number, since it is larger than the sum of its proper divisors (1).

31063818479 is an equidigital number, since it uses as much as digits as its factorization.

31063818479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 31063818479 in words is "thirty-one billion, sixty-three million, eight hundred eighteen thousand, four hundred seventy-nine".