19737042859 has 2 divisors, whose sum is σ = 19737042860. Its totient is φ = 19737042858.

The previous prime is 19737042833. The next prime is 19737042881. The reversal of 19737042859 is 95824073791.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19737042859 - 2²⁷ = 19602825131 is a prime.

It is not a weakly prime, because it can be changed into another prime (19737042659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9868521429 + 9868521430.

It is an arithmetic number, because the mean of its divisors is an integer number (9868521430).

Almost surely, 2^19737042859 is an apocalyptic number.

19737042859 is a deficient number, since it is larger than the sum of its proper divisors (1).

19737042859 is an equidigital number, since it uses as much as digits as its factorization.

19737042859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 19737042859 in words is "nineteen billion, seven hundred thirty-seven million, forty-two thousand, eight hundred fifty-nine".