19140463379 has 2 divisors, whose sum is σ = 19140463380. Its totient is φ = 19140463378.

The previous prime is 19140463337. The next prime is 19140463423. The reversal of 19140463379 is 97336404191.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19140463379 is a prime.

It is not a weakly prime, because it can be changed into another prime (19140469379) 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, 9570231689 + 9570231690.

It is an arithmetic number, because the mean of its divisors is an integer number (9570231690).

Almost surely, 2^19140463379 is an apocalyptic number.

19140463379 is a deficient number, since it is larger than the sum of its proper divisors (1).

19140463379 is an equidigital number, since it uses as much as digits as its factorization.

19140463379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 19140463379 in words is "nineteen billion, one hundred forty million, four hundred sixty-three thousand, three hundred seventy-nine".