64919485 has 16 divisors (see below), whose sum is σ = 82353600. Its totient is φ = 48992256.

The previous prime is 64919473. The next prime is 64919509. The reversal of 64919485 is 58491946.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64919485 - 2⁵ = 64919453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23086 + ... + 25744.

It is an arithmetic number, because the mean of its divisors is an integer number (5147100).

Almost surely, 2^64919485 is an apocalyptic number.

It is an amenable number.

64919485 is a deficient number, since it is larger than the sum of its proper divisors (17434115).

64919485 is a wasteful number, since it uses less digits than its factorization.

64919485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940.

The product of its digits is 311040, while the sum is 46.

The square root of 64919485 is about 8057.2628727130. The cubic root of 64919485 is about 401.9064925290.

The spelling of 64919485 in words is "sixty-four million, nine hundred nineteen thousand, four hundred eighty-five".