19360680487 has 2 divisors, whose sum is σ = 19360680488. Its totient is φ = 19360680486.

The previous prime is 19360680467. The next prime is 19360680509. The reversal of 19360680487 is 78408606391.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19360680487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19360680467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9680340243 + 9680340244.

It is an arithmetic number, because the mean of its divisors is an integer number (9680340244).

Almost surely, 2^19360680487 is an apocalyptic number.

19360680487 is a deficient number, since it is larger than the sum of its proper divisors (1).

19360680487 is an equidigital number, since it uses as much as digits as its factorization.

19360680487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 19360680487 in words is "nineteen billion, three hundred sixty million, six hundred eighty thousand, four hundred eighty-seven".