6291471293 has 2 divisors, whose sum is σ = 6291471294. Its totient is φ = 6291471292.

The previous prime is 6291471271. The next prime is 6291471301. The reversal of 6291471293 is 3921741926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5431984804 + 859486489 = 73702^2 + 29317^2 .

It is a cyclic number.

It is not a de Polignac number, because 6291471293 - 2²⁰ = 6290422717 is a prime.

It is a super-2 number, since 2×6291471293² = 79165222061286183698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6291471203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3145735646 + 3145735647.

It is an arithmetic number, because the mean of its divisors is an integer number (3145735647).

Almost surely, 2^6291471293 is an apocalyptic number.

It is an amenable number.

6291471293 is a deficient number, since it is larger than the sum of its proper divisors (1).

6291471293 is an equidigital number, since it uses as much as digits as its factorization.

6291471293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 6291471293 is about 79318.7953325062. The cubic root of 6291471293 is about 1846.0809457824.

The spelling of 6291471293 in words is "six billion, two hundred ninety-one million, four hundred seventy-one thousand, two hundred ninety-three".