8640340267 has 8 divisors (see below), whose sum is σ = 9309596240. Its totient is φ = 7971743520.

The previous prime is 8640340259. The next prime is 8640340279. The reversal of 8640340267 is 7620430468.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8640340267 - 2³ = 8640340259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8640340207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137409 + ... + 190162.

It is an arithmetic number, because the mean of its divisors is an integer number (1163699530).

Almost surely, 2^8640340267 is an apocalyptic number.

8640340267 is a deficient number, since it is larger than the sum of its proper divisors (669255973).

8640340267 is a wasteful number, since it uses less digits than its factorization.

8640340267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329613.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 8640340267 is about 92953.4306359911. The cubic root of 8640340267 is about 2051.9980730837.

The spelling of 8640340267 in words is "eight billion, six hundred forty million, three hundred forty thousand, two hundred sixty-seven".