6942969251 has 2 divisors, whose sum is σ = 6942969252. Its totient is φ = 6942969250.

The previous prime is 6942969197. The next prime is 6942969259. The reversal of 6942969251 is 1529692496.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6942969251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6942969193 and 6942969202.

It is not a weakly prime, because it can be changed into another prime (6942969259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3471484625 + 3471484626.

It is an arithmetic number, because the mean of its divisors is an integer number (3471484626).

Almost surely, 2^6942969251 is an apocalyptic number.

6942969251 is a deficient number, since it is larger than the sum of its proper divisors (1).

6942969251 is an equidigital number, since it uses as much as digits as its factorization.

6942969251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 53.

The square root of 6942969251 is about 83324.4817025585. The cubic root of 6942969251 is about 1907.7219673595.

The spelling of 6942969251 in words is "six billion, nine hundred forty-two million, nine hundred sixty-nine thousand, two hundred fifty-one".