64910745 has 72 divisors (see below), whose sum is σ = 123926400. Its totient is φ = 31337280.

The previous prime is 64910711. The next prime is 64910753. The reversal of 64910745 is 54701946.

64910745 is a `hidden beast` number, since 649 + 1 + 0 + 7 + 4 + 5 = 666.

It is not a de Polignac number, because 64910745 - 2¹⁵ = 64877977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 821616 + ... + 821694.

It is an arithmetic number, because the mean of its divisors is an integer number (1721200).

Almost surely, 2^64910745 is an apocalyptic number.

It is an amenable number.

64910745 is a deficient number, since it is larger than the sum of its proper divisors (59015655).

64910745 is a wasteful number, since it uses less digits than its factorization.

64910745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 64910745 is about 8056.7204866496. The cubic root of 64910745 is about 401.8884557234. Note that the first 3 decimals are identical.

The spelling of 64910745 in words is "sixty-four million, nine hundred ten thousand, seven hundred forty-five".