45268572644 has 6 divisors (see below), whose sum is σ = 79220002134. Its totient is φ = 22634286320.

The previous prime is 45268572631. The next prime is 45268572719. The reversal of 45268572644 is 44627586254.

It is a happy number.

45268572644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39248364544 + 6020208100 = 198112^2 + 77590^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5658571577 + ... + 5658571584.

It is an arithmetic number, because the mean of its divisors is an integer number (13203333689).

Almost surely, 2^45268572644 is an apocalyptic number.

It is an amenable number.

45268572644 is a deficient number, since it is larger than the sum of its proper divisors (33951429490).

45268572644 is a wasteful number, since it uses less digits than its factorization.

45268572644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11317143165 (or 11317143163 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 53.

The spelling of 45268572644 in words is "forty-five billion, two hundred sixty-eight million, five hundred seventy-two thousand, six hundred forty-four".