19080831631 has 2 divisors, whose sum is σ = 19080831632. Its totient is φ = 19080831630.

The previous prime is 19080831589. The next prime is 19080831641. The reversal of 19080831631 is 13613808091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19080831631 - 2¹¹ = 19080829583 is a prime.

It is a super-2 number, since 2×19080831631² (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 (19080831641) 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, 9540415815 + 9540415816.

It is an arithmetic number, because the mean of its divisors is an integer number (9540415816).

Almost surely, 2^19080831631 is an apocalyptic number.

19080831631 is a deficient number, since it is larger than the sum of its proper divisors (1).

19080831631 is an equidigital number, since it uses as much as digits as its factorization.

19080831631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 19080831631 in words is "nineteen billion, eighty million, eight hundred thirty-one thousand, six hundred thirty-one".