10197626779 has 2 divisors, whose sum is σ = 10197626780. Its totient is φ = 10197626778.

The previous prime is 10197626753. The next prime is 10197626807. The reversal of 10197626779 is 97762679101.

It is a weak prime.

It is an emirp because it is prime and its reverse (97762679101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10197626779 - 2⁷ = 10197626651 is a prime.

It is not a weakly prime, because it can be changed into another prime (10197624779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5098813389 + 5098813390.

It is an arithmetic number, because the mean of its divisors is an integer number (5098813390).

Almost surely, 2^10197626779 is an apocalyptic number.

10197626779 is a deficient number, since it is larger than the sum of its proper divisors (1).

10197626779 is an equidigital number, since it uses as much as digits as its factorization.

10197626779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000376, while the sum is 55.

The spelling of 10197626779 in words is "ten billion, one hundred ninety-seven million, six hundred twenty-six thousand, seven hundred seventy-nine".