6972864491 has 2 divisors, whose sum is σ = 6972864492. Its totient is φ = 6972864490.

The previous prime is 6972864469. The next prime is 6972864557. The reversal of 6972864491 is 1944682796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6972864491 - 2⁶ = 6972864427 is a prime.

It is not a weakly prime, because it can be changed into another prime (6972864191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3486432245 + 3486432246.

It is an arithmetic number, because the mean of its divisors is an integer number (3486432246).

Almost surely, 2^6972864491 is an apocalyptic number.

6972864491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6972864491 is an equidigital number, since it uses as much as digits as its factorization.

6972864491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 56.

The square root of 6972864491 is about 83503.6795057559. The cubic root of 6972864491 is about 1910.4561551329.

The spelling of 6972864491 in words is "six billion, nine hundred seventy-two million, eight hundred sixty-four thousand, four hundred ninety-one".