6475454861 has 2 divisors, whose sum is σ = 6475454862. Its totient is φ = 6475454860.

The previous prime is 6475454831. The next prime is 6475454873. The reversal of 6475454861 is 1684545746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3538465225 + 2936989636 = 59485^2 + 54194^2 .

It is a cyclic number.

It is not a de Polignac number, because 6475454861 - 2¹⁴ = 6475438477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6475454831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3237727430 + 3237727431.

It is an arithmetic number, because the mean of its divisors is an integer number (3237727431).

Almost surely, 2^6475454861 is an apocalyptic number.

It is an amenable number.

6475454861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6475454861 is an equidigital number, since it uses as much as digits as its factorization.

6475454861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600, while the sum is 50.

The square root of 6475454861 is about 80470.2110162512. The cubic root of 6475454861 is about 1863.9035126188.

The spelling of 6475454861 in words is "six billion, four hundred seventy-five million, four hundred fifty-four thousand, eight hundred sixty-one".