19463430523 has 2 divisors, whose sum is σ = 19463430524. Its totient is φ = 19463430522.

The previous prime is 19463430479. The next prime is 19463430587. The reversal of 19463430523 is 32503436491.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19463430523 is a prime.

It is not a weakly prime, because it can be changed into another prime (19463430023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9731715261 + 9731715262.

It is an arithmetic number, because the mean of its divisors is an integer number (9731715262).

Almost surely, 2^19463430523 is an apocalyptic number.

19463430523 is a deficient number, since it is larger than the sum of its proper divisors (1).

19463430523 is an equidigital number, since it uses as much as digits as its factorization.

19463430523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 19463430523 in words is "nineteen billion, four hundred sixty-three million, four hundred thirty thousand, five hundred twenty-three".