2977982081279 has 2 divisors, whose sum is σ = 2977982081280. Its totient is φ = 2977982081278.

The previous prime is 2977982081257. The next prime is 2977982081287. The reversal of 2977982081279 is 9721802897792.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2977982081279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2977982084279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1488991040639 + 1488991040640.

It is an arithmetic number, because the mean of its divisors is an integer number (1488991040640).

Almost surely, 2^{2977982081279} is an apocalyptic number.

2977982081279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2977982081279 is an equidigital number, since it uses as much as digits as its factorization.

2977982081279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128024064, while the sum is 71.

The spelling of 2977982081279 in words is "two trillion, nine hundred seventy-seven billion, nine hundred eighty-two million, eighty-one thousand, two hundred seventy-nine".