6464605115 has 4 divisors (see below), whose sum is σ = 7757526144. Its totient is φ = 5171684088.

The previous prime is 6464605111. The next prime is 6464605127. The reversal of 6464605115 is 5115064646.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5115064646 = 2 ⋅2557532323.

It is a cyclic number.

It is not a de Polignac number, because 6464605115 - 2² = 6464605111 is a prime.

It is a super-2 number, since 2×6464605115² = 83582238585768326450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6464605111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646460507 + ... + 646460516.

It is an arithmetic number, because the mean of its divisors is an integer number (1939381536).

Almost surely, 2^6464605115 is an apocalyptic number.

6464605115 is a deficient number, since it is larger than the sum of its proper divisors (1292921029).

6464605115 is a wasteful number, since it uses less digits than its factorization.

6464605115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292921028.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 6464605115 is about 80402.7680804585. The cubic root of 6464605115 is about 1862.8619289132.

The spelling of 6464605115 in words is "six billion, four hundred sixty-four million, six hundred five thousand, one hundred fifteen".