19172496363431 has 2 divisors, whose sum is σ = 19172496363432. Its totient is φ = 19172496363430.

The previous prime is 19172496363409. The next prime is 19172496363451. The reversal of 19172496363431 is 13436369427191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19172496363431 - 2¹⁴ = 19172496347047 is a prime.

It is a super-2 number, since 2×19172496363431² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19172496363451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9586248181715 + 9586248181716.

It is an arithmetic number, because the mean of its divisors is an integer number (9586248181716).

Almost surely, 2^{19172496363431} is an apocalyptic number.

19172496363431 is a deficient number, since it is larger than the sum of its proper divisors (1).

19172496363431 is an equidigital number, since it uses as much as digits as its factorization.

19172496363431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 59.

The spelling of 19172496363431 in words is "nineteen trillion, one hundred seventy-two billion, four hundred ninety-six million, three hundred sixty-three thousand, four hundred thirty-one".