19327672531 has 2 divisors, whose sum is σ = 19327672532. Its totient is φ = 19327672530.

The previous prime is 19327672523. The next prime is 19327672591. The reversal of 19327672531 is 13527672391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19327672531 - 2³ = 19327672523 is a prime.

It is a super-2 number, since 2×19327672531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19327672591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9663836265 + 9663836266.

It is an arithmetic number, because the mean of its divisors is an integer number (9663836266).

Almost surely, 2^19327672531 is an apocalyptic number.

19327672531 is a deficient number, since it is larger than the sum of its proper divisors (1).

19327672531 is an equidigital number, since it uses as much as digits as its factorization.

19327672531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 46.

The spelling of 19327672531 in words is "nineteen billion, three hundred twenty-seven million, six hundred seventy-two thousand, five hundred thirty-one".