64276209368 has 32 divisors (see below), whose sum is σ = 137886700800. Its totient is φ = 27516553632.

The previous prime is 64276209367. The next prime is 64276209401. The reversal of 64276209368 is 86390267246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64276209367) 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, 581948 + ... + 683531.

It is an arithmetic number, because the mean of its divisors is an integer number (4308959400).

Almost surely, 2^64276209368 is an apocalyptic number.

It is an amenable number.

64276209368 is an abundant number, since it is smaller than the sum of its proper divisors (73610491432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64276209368 is a wasteful number, since it uses less digits than its factorization.

64276209368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266399 (or 1266395 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 64276209368 in words is "sixty-four billion, two hundred seventy-six million, two hundred nine thousand, three hundred sixty-eight".