6921176473 has 2 divisors, whose sum is σ = 6921176474. Its totient is φ = 6921176472.

The previous prime is 6921176443. The next prime is 6921176477. The reversal of 6921176473 is 3746711296.

6921176473 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4911626889 + 2009549584 = 70083^2 + 44828^2 .

It is a cyclic number.

It is not a de Polignac number, because 6921176473 - 2¹⁷ = 6921045401 is a prime.

It is not a weakly prime, because it can be changed into another prime (6921176477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3460588236 + 3460588237.

It is an arithmetic number, because the mean of its divisors is an integer number (3460588237).

Almost surely, 2^6921176473 is an apocalyptic number.

It is an amenable number.

6921176473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6921176473 is an equidigital number, since it uses as much as digits as its factorization.

6921176473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 46.

The square root of 6921176473 is about 83193.6083662681. The cubic root of 6921176473 is about 1905.7238723910.

The spelling of 6921176473 in words is "six billion, nine hundred twenty-one million, one hundred seventy-six thousand, four hundred seventy-three".