6340994819 has 2 divisors, whose sum is σ = 6340994820. Its totient is φ = 6340994818.

The previous prime is 6340994753. The next prime is 6340994831. The reversal of 6340994819 is 9184990436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6340994819 - 2⁸ = 6340994563 is a prime.

It is a super-2 number, since 2×6340994819² = 80416430589169685522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6340994879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170497409 + 3170497410.

It is an arithmetic number, because the mean of its divisors is an integer number (3170497410).

Almost surely, 2^6340994819 is an apocalyptic number.

6340994819 is a deficient number, since it is larger than the sum of its proper divisors (1).

6340994819 is an equidigital number, since it uses as much as digits as its factorization.

6340994819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 6340994819 is about 79630.3636749199. The cubic root of 6340994819 is about 1850.9121208511.

The spelling of 6340994819 in words is "six billion, three hundred forty million, nine hundred ninety-four thousand, eight hundred nineteen".