9944422877 has 2 divisors, whose sum is σ = 9944422878. Its totient is φ = 9944422876.

The previous prime is 9944422819. The next prime is 9944422927. The reversal of 9944422877 is 7782244499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9941286436 + 3136441 = 99706^2 + 1771^2 .

It is a cyclic number.

It is not a de Polignac number, because 9944422877 - 2²⁸ = 9675987421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9944428877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4972211438 + 4972211439.

It is an arithmetic number, because the mean of its divisors is an integer number (4972211439).

Almost surely, 2^9944422877 is an apocalyptic number.

It is an amenable number.

9944422877 is a deficient number, since it is larger than the sum of its proper divisors (1).

9944422877 is an equidigital number, since it uses as much as digits as its factorization.

9944422877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 56.

The square root of 9944422877 is about 99721.7272062613. The cubic root of 9944422877 is about 2150.4360303319.

The spelling of 9944422877 in words is "nine billion, nine hundred forty-four million, four hundred twenty-two thousand, eight hundred seventy-seven".