45778664 has 8 divisors (see below), whose sum is σ = 85835010. Its totient is φ = 22889328.

The previous prime is 45778651. The next prime is 45778699. The reversal of 45778664 is 46687754.

It is a happy number.

45778664 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., 28622500 + 17156164 = 5350^2 + 4142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2861159 + ... + 2861174.

Almost surely, 2^45778664 is an apocalyptic number.

It is an amenable number.

45778664 is a deficient number, since it is larger than the sum of its proper divisors (40056346).

45778664 is a wasteful number, since it uses less digits than its factorization.

45778664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722339 (or 5722335 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The square root of 45778664 is about 6765.9932012972. The cubic root of 45778664 is about 357.7291835748.

The spelling of 45778664 in words is "forty-five million, seven hundred seventy-eight thousand, six hundred sixty-four".