19627896413 has 2 divisors, whose sum is σ = 19627896414. Its totient is φ = 19627896412.

The previous prime is 19627896391. The next prime is 19627896427. The reversal of 19627896413 is 31469872691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15320993284 + 4306903129 = 123778^2 + 65627^2 .

It is a cyclic number.

It is not a de Polignac number, because 19627896413 - 2⁶ = 19627896349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19627896433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9813948206 + 9813948207.

It is an arithmetic number, because the mean of its divisors is an integer number (9813948207).

Almost surely, 2^19627896413 is an apocalyptic number.

It is an amenable number.

19627896413 is a deficient number, since it is larger than the sum of its proper divisors (1).

19627896413 is an equidigital number, since it uses as much as digits as its factorization.

19627896413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 56.

The spelling of 19627896413 in words is "nineteen billion, six hundred twenty-seven million, eight hundred ninety-six thousand, four hundred thirteen".