9947266052879 has 2 divisors, whose sum is σ = 9947266052880. Its totient is φ = 9947266052878.

The previous prime is 9947266052827. The next prime is 9947266052881. The reversal of 9947266052879 is 9782506627499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9947266052879 - 2¹⁶ = 9947265987343 is a prime.

Together with 9947266052881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9947266252879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4973633026439 + 4973633026440.

It is an arithmetic number, because the mean of its divisors is an integer number (4973633026440).

Almost surely, 2^{9947266052879} is an apocalyptic number.

9947266052879 is a deficient number, since it is larger than the sum of its proper divisors (1).

9947266052879 is an equidigital number, since it uses as much as digits as its factorization.

9947266052879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 823011840, while the sum is 74.

The spelling of 9947266052879 in words is "nine trillion, nine hundred forty-seven billion, two hundred sixty-six million, fifty-two thousand, eight hundred seventy-nine".