6900940777 has 2 divisors, whose sum is σ = 6900940778. Its totient is φ = 6900940776.

The previous prime is 6900940741. The next prime is 6900940817. The reversal of 6900940777 is 7770490096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6898797481 + 2143296 = 83059^2 + 1464^2 .

It is a cyclic number.

It is not a de Polignac number, because 6900940777 - 2¹¹ = 6900938729 is a prime.

It is a super-2 number, since 2×6900940777² = 95245967215322727458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6900940777.

It is not a weakly prime, because it can be changed into another prime (6900940477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3450470388 + 3450470389.

It is an arithmetic number, because the mean of its divisors is an integer number (3450470389).

Almost surely, 2^6900940777 is an apocalyptic number.

It is an amenable number.

6900940777 is a deficient number, since it is larger than the sum of its proper divisors (1).

6900940777 is an equidigital number, since it uses as much as digits as its factorization.

6900940777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 6900940777 is about 83071.9012482560. The cubic root of 6900940777 is about 1903.8647812584.

The spelling of 6900940777 in words is "six billion, nine hundred million, nine hundred forty thousand, seven hundred seventy-seven".