64267028071 has 4 divisors (see below), whose sum is σ = 64989129600. Its totient is φ = 63544926544.

The previous prime is 64267028051. The next prime is 64267028081. The reversal of 64267028071 is 17082076246.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64267028071 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 (64267028051) 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, 361050631 + ... + 361050808.

It is an arithmetic number, because the mean of its divisors is an integer number (16247282400).

Almost surely, 2^64267028071 is an apocalyptic number.

64267028071 is a deficient number, since it is larger than the sum of its proper divisors (722101529).

64267028071 is an equidigital number, since it uses as much as digits as its factorization.

64267028071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722101528.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 64267028071 in words is "sixty-four billion, two hundred sixty-seven million, twenty-eight thousand, seventy-one".