6340279645 has 16 divisors (see below), whose sum is σ = 8725979520. Its totient is φ = 4332250944.

The previous prime is 6340279637. The next prime is 6340279661. The reversal of 6340279645 is 5469720436.

It is not a de Polignac number, because 6340279645 - 2³ = 6340279637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6340279595 and 6340279604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310150 + ... + 329959.

It is an arithmetic number, because the mean of its divisors is an integer number (545373720).

Almost surely, 2^6340279645 is an apocalyptic number.

It is an amenable number.

6340279645 is a deficient number, since it is larger than the sum of its proper divisors (2385699875).

6340279645 is a wasteful number, since it uses less digits than its factorization.

6340279645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640404.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The square root of 6340279645 is about 79625.8729622476. The cubic root of 6340279645 is about 1850.8425327169.

The spelling of 6340279645 in words is "six billion, three hundred forty million, two hundred seventy-nine thousand, six hundred forty-five".