64764134227 has 8 divisors (see below), whose sum is σ = 69747988464. Its totient is φ = 59780565408.

The previous prime is 64764134219. The next prime is 64764134249. The reversal of 64764134227 is 72243146746.

It is a happy number.

64764134227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64764134227 - 2³ = 64764134219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64764134207) 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, 751113 + ... + 832885.

It is an arithmetic number, because the mean of its divisors is an integer number (8718498558).

Almost surely, 2^64764134227 is an apocalyptic number.

64764134227 is a deficient number, since it is larger than the sum of its proper divisors (4983854237).

64764134227 is a wasteful number, since it uses less digits than its factorization.

64764134227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142709.

The product of its digits is 1354752, while the sum is 46.

The spelling of 64764134227 in words is "sixty-four billion, seven hundred sixty-four million, one hundred thirty-four thousand, two hundred twenty-seven".