6464536085 has 16 divisors (see below), whose sum is σ = 8879383296. Its totient is φ = 4425957888.

The previous prime is 6464536081. The next prime is 6464536123. The reversal of 6464536085 is 5806354646.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6464536085 - 2² = 6464536081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464536081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120092 + ... + 165381.

It is an arithmetic number, because the mean of its divisors is an integer number (554961456).

Almost surely, 2^6464536085 is an apocalyptic number.

It is an amenable number.

6464536085 is a deficient number, since it is larger than the sum of its proper divisors (2414847211).

6464536085 is a wasteful number, since it uses less digits than its factorization.

6464536085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286132.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The square root of 6464536085 is about 80402.3388030473. The cubic root of 6464536085 is about 1862.8552982521.

The spelling of 6464536085 in words is "six billion, four hundred sixty-four million, five hundred thirty-six thousand, eighty-five".