6954685891 has 2 divisors, whose sum is σ = 6954685892. Its totient is φ = 6954685890.

The previous prime is 6954685877. The next prime is 6954685931. The reversal of 6954685891 is 1985864596.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6954685891 - 2⁹ = 6954685379 is a prime.

It is not a weakly prime, because it can be changed into another prime (6954685861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3477342945 + 3477342946.

It is an arithmetic number, because the mean of its divisors is an integer number (3477342946).

Almost surely, 2^6954685891 is an apocalyptic number.

6954685891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6954685891 is an equidigital number, since it uses as much as digits as its factorization.

6954685891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18662400, while the sum is 61.

The square root of 6954685891 is about 83394.7593737160. The cubic root of 6954685891 is about 1908.7944926254.

The spelling of 6954685891 in words is "six billion, nine hundred fifty-four million, six hundred eighty-five thousand, eight hundred ninety-one".