19712693503 has 2 divisors, whose sum is σ = 19712693504. Its totient is φ = 19712693502.

The previous prime is 19712693461. The next prime is 19712693551. The reversal of 19712693503 is 30539621791.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19712693503 is a prime.

It is a super-2 number, since 2×19712693503² (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 (19712693573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9856346751 + 9856346752.

It is an arithmetic number, because the mean of its divisors is an integer number (9856346752).

Almost surely, 2^19712693503 is an apocalyptic number.

19712693503 is a deficient number, since it is larger than the sum of its proper divisors (1).

19712693503 is an equidigital number, since it uses as much as digits as its factorization.

19712693503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 46.

The spelling of 19712693503 in words is "nineteen billion, seven hundred twelve million, six hundred ninety-three thousand, five hundred three".