2978558368699 has 2 divisors, whose sum is σ = 2978558368700. Its totient is φ = 2978558368698.

The previous prime is 2978558368661. The next prime is 2978558368717. The reversal of 2978558368699 is 9968638558792.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2978558368699 - 2⁹ = 2978558368187 is a prime.

It is not a weakly prime, because it can be changed into another prime (2978558363699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489279184349 + 1489279184350.

It is an arithmetic number, because the mean of its divisors is an integer number (1489279184350).

Almost surely, 2^{2978558368699} is an apocalyptic number.

2978558368699 is a deficient number, since it is larger than the sum of its proper divisors (1).

2978558368699 is an equidigital number, since it uses as much as digits as its factorization.

2978558368699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14108774400, while the sum is 85.

The spelling of 2978558368699 in words is "two trillion, nine hundred seventy-eight billion, five hundred fifty-eight million, three hundred sixty-eight thousand, six hundred ninety-nine".