13919073631 has 2 divisors, whose sum is σ = 13919073632. Its totient is φ = 13919073630.

The previous prime is 13919073613. The next prime is 13919073647. The reversal of 13919073631 is 13637091931.

Together with previous prime (13919073613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (13637091931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13919073631 - 2¹⁹ = 13918549343 is a prime.

It is a super-2 number, since 2×13919073631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13919073601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6959536815 + 6959536816.

It is an arithmetic number, because the mean of its divisors is an integer number (6959536816).

Almost surely, 2^13919073631 is an apocalyptic number.

13919073631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13919073631 is an equidigital number, since it uses as much as digits as its factorization.

13919073631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 43.

The spelling of 13919073631 in words is "thirteen billion, nine hundred nineteen million, seventy-three thousand, six hundred thirty-one".