8839355972977 has 2 divisors, whose sum is σ = 8839355972978. Its totient is φ = 8839355972976.

The previous prime is 8839355972947. The next prime is 8839355972989. The reversal of 8839355972977 is 7792795539388.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6562045599201 + 2277310373776 = 2561649^2 + 1509076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8839355972977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8839355972977.

It is not a weakly prime, because it can be changed into another prime (8839355972947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4419677986488 + 4419677986489.

It is an arithmetic number, because the mean of its divisors is an integer number (4419677986489).

Almost surely, 2^{8839355972977} is an apocalyptic number.

It is an amenable number.

8839355972977 is a deficient number, since it is larger than the sum of its proper divisors (1).

8839355972977 is an equidigital number, since it uses as much as digits as its factorization.

8839355972977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7201353600, while the sum is 82.

The spelling of 8839355972977 in words is "eight trillion, eight hundred thirty-nine billion, three hundred fifty-five million, nine hundred seventy-two thousand, nine hundred seventy-seven".