6305668491 has 32 divisors (see below), whose sum is σ = 9207808000. Its totient is φ = 3823575840.

The previous prime is 6305668489. The next prime is 6305668493. The reversal of 6305668491 is 1948665036.

It is an interprime number because it is at equal distance from previous prime (6305668489) and next prime (6305668493).

It is not a de Polignac number, because 6305668491 - 2¹ = 6305668489 is a prime.

It is a super-2 number, since 2×6305668491² = 79522910236780434162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6305668491.

It is not an unprimeable number, because it can be changed into a prime (6305668493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210360 + ... + 238458.

It is an arithmetic number, because the mean of its divisors is an integer number (287744000).

Almost surely, 2^6305668491 is an apocalyptic number.

6305668491 is a deficient number, since it is larger than the sum of its proper divisors (2902139509).

6305668491 is a wasteful number, since it uses less digits than its factorization.

6305668491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28279.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 6305668491 is about 79408.2394402495. The cubic root of 6305668491 is about 1847.4685113621.

The spelling of 6305668491 in words is "six billion, three hundred five million, six hundred sixty-eight thousand, four hundred ninety-one".