6694512413 has 2 divisors, whose sum is σ = 6694512414. Its totient is φ = 6694512412.

The previous prime is 6694512389. The next prime is 6694512427. The reversal of 6694512413 is 3142154966.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5005138009 + 1689374404 = 70747^2 + 41102^2 .

It is a cyclic number.

It is not a de Polignac number, because 6694512413 - 2¹⁶ = 6694446877 is a prime.

It is a super-2 number, since 2×6694512413² = 89632992895622165138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6694514413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3347256206 + 3347256207.

It is an arithmetic number, because the mean of its divisors is an integer number (3347256207).

Almost surely, 2^6694512413 is an apocalyptic number.

It is an amenable number.

6694512413 is a deficient number, since it is larger than the sum of its proper divisors (1).

6694512413 is an equidigital number, since it uses as much as digits as its factorization.

6694512413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 6694512413 is about 81820.0000794427. Note that the first 4 decimals coincide. The cubic root of 6694512413 is about 1884.6888029306.

The spelling of 6694512413 in words is "six billion, six hundred ninety-four million, five hundred twelve thousand, four hundred thirteen".