6994242977 has 2 divisors, whose sum is σ = 6994242978. Its totient is φ = 6994242976.

The previous prime is 6994242953. The next prime is 6994242979. The reversal of 6994242977 is 7792424996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3898878481 + 3095364496 = 62441^2 + 55636^2 .

It is a cyclic number.

It is not a de Polignac number, because 6994242977 - 2⁸ = 6994242721 is a prime.

It is a super-4 number, since 4×6994242977⁴ (a number of 40 digits) contains 4444 as substring.

Together with 6994242979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6994242979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497121488 + 3497121489.

It is an arithmetic number, because the mean of its divisors is an integer number (3497121489).

Almost surely, 2^6994242977 is an apocalyptic number.

It is an amenable number.

6994242977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6994242977 is an equidigital number, since it uses as much as digits as its factorization.

6994242977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 59.

The square root of 6994242977 is about 83631.5907836267. The cubic root of 6994242977 is about 1912.4066204254.

The spelling of 6994242977 in words is "six billion, nine hundred ninety-four million, two hundred forty-two thousand, nine hundred seventy-seven".