6340654243 has 12 divisors (see below), whose sum is σ = 8046396792. Its totient is φ = 4940769120.

The previous prime is 6340654231. The next prime is 6340654247. The reversal of 6340654243 is 3424560436.

It is a happy number.

It is not a de Polignac number, because 6340654243 - 2¹³ = 6340646051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6340654247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5881330 + ... + 5882407.

It is an arithmetic number, because the mean of its divisors is an integer number (670533066).

Almost surely, 2^6340654243 is an apocalyptic number.

6340654243 is a deficient number, since it is larger than the sum of its proper divisors (1705742549).

6340654243 is a wasteful number, since it uses less digits than its factorization.

6340654243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11763762 (or 11763755 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

The square root of 6340654243 is about 79628.2251654525. The cubic root of 6340654243 is about 1850.8789826474.

It can be divided in two parts, 63406 and 54243, that added together give a 6-th power (117649 = 7⁶).

The spelling of 6340654243 in words is "six billion, three hundred forty million, six hundred fifty-four thousand, two hundred forty-three".