19313039807 has 2 divisors, whose sum is σ = 19313039808. Its totient is φ = 19313039806.

The previous prime is 19313039789. The next prime is 19313039821. The reversal of 19313039807 is 70893031391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19313039807 - 2⁶ = 19313039743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19313039857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9656519903 + 9656519904.

It is an arithmetic number, because the mean of its divisors is an integer number (9656519904).

Almost surely, 2^19313039807 is an apocalyptic number.

19313039807 is a deficient number, since it is larger than the sum of its proper divisors (1).

19313039807 is an equidigital number, since it uses as much as digits as its factorization.

19313039807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 19313039807 in words is "nineteen billion, three hundred thirteen million, thirty-nine thousand, eight hundred seven".