19967148107 has 2 divisors, whose sum is σ = 19967148108. Its totient is φ = 19967148106.

The previous prime is 19967148049. The next prime is 19967148109. The reversal of 19967148107 is 70184176991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19967148107 - 2¹⁸ = 19966885963 is a prime.

Together with 19967148109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19967148109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9983574053 + 9983574054.

It is an arithmetic number, because the mean of its divisors is an integer number (9983574054).

Almost surely, 2^19967148107 is an apocalyptic number.

19967148107 is a deficient number, since it is larger than the sum of its proper divisors (1).

19967148107 is an equidigital number, since it uses as much as digits as its factorization.

19967148107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 53.

The spelling of 19967148107 in words is "nineteen billion, nine hundred sixty-seven million, one hundred forty-eight thousand, one hundred seven".