64228604200644 has 48 divisors (see below), whose sum is σ = 161660843929088. Its totient is φ = 19730089513728.

The previous prime is 64228604200627. The next prime is 64228604200661. The reversal of 64228604200644 is 44600240682246.

It is an interprime number because it is at equal distance from previous prime (64228604200627) and next prime (64228604200661).

It is a junction number, because it is equal to n+sod(n) for n = 64228604200593 and 64228604200602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339050137 + ... + 339239520.

Almost surely, 2^{64228604200644} is an apocalyptic number.

It is an amenable number.

64228604200644 is an abundant number, since it is smaller than the sum of its proper divisors (97432239728444).

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

64228604200644 is a wasteful number, since it uses less digits than its factorization.

64228604200644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678290284 (or 678290282 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 48.

The spelling of 64228604200644 in words is "sixty-four trillion, two hundred twenty-eight billion, six hundred four million, two hundred thousand, six hundred forty-four".