19629113939 has 2 divisors, whose sum is σ = 19629113940. Its totient is φ = 19629113938.

The previous prime is 19629113927. The next prime is 19629113953. The reversal of 19629113939 is 93931192691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19629113939 - 2⁸ = 19629113683 is a prime.

It is a super-2 number, since 2×19629113939² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19629113239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9814556969 + 9814556970.

It is an arithmetic number, because the mean of its divisors is an integer number (9814556970).

Almost surely, 2^19629113939 is an apocalyptic number.

19629113939 is a deficient number, since it is larger than the sum of its proper divisors (1).

19629113939 is an equidigital number, since it uses as much as digits as its factorization.

19629113939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 708588, while the sum is 53.

The spelling of 19629113939 in words is "nineteen billion, six hundred twenty-nine million, one hundred thirteen thousand, nine hundred thirty-nine".