64227430418 has 6 divisors (see below), whose sum is σ = 96341683239. Its totient is φ = 32113536006.

The previous prime is 64227430411. The next prime is 64227430447. The reversal of 64227430418 is 81403472246.

It can be written as a sum of positive squares in only one way, i.e., 32113715209 + 32113715209 = 179203^2 + 179203^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=179203.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64227430411) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 268805 + ... + 448007.

Almost surely, 2^64227430418 is an apocalyptic number.

64227430418 is a deficient number, since it is larger than the sum of its proper divisors (32114252821).

64227430418 is an frugal number, since it uses more digits than its factorization.

64227430418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358408 (or 179205 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 64227430418 in words is "sixty-four billion, two hundred twenty-seven million, four hundred thirty thousand, four hundred eighteen".