64858452263 has 4 divisors (see below), whose sum is σ = 70754675208. Its totient is φ = 58962229320.

The previous prime is 64858452227. The next prime is 64858452271. The reversal of 64858452263 is 36225485846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64858452263 - 2⁶ = 64858452199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64858454263) 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, 2948111456 + ... + 2948111477.

It is an arithmetic number, because the mean of its divisors is an integer number (17688668802).

Almost surely, 2^64858452263 is an apocalyptic number.

64858452263 is a deficient number, since it is larger than the sum of its proper divisors (5896222945).

64858452263 is a wasteful number, since it uses less digits than its factorization.

64858452263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896222944.

The product of its digits is 11059200, while the sum is 53.

The spelling of 64858452263 in words is "sixty-four billion, eight hundred fifty-eight million, four hundred fifty-two thousand, two hundred sixty-three".