64519055470 has 32 divisors (see below), whose sum is σ = 117152433216. Its totient is φ = 25582291200.

The previous prime is 64519055453. The next prime is 64519055501. The reversal of 64519055470 is 7455091546.

It is a self number, because there is not a number n which added to its sum of digits gives 64519055470.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 505602 + ... + 620218.

It is an arithmetic number, because the mean of its divisors is an integer number (3661013538).

Almost surely, 2^64519055470 is an apocalyptic number.

64519055470 is a deficient number, since it is larger than the sum of its proper divisors (52633377746).

64519055470 is a wasteful number, since it uses less digits than its factorization.

64519055470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115116.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 64519055470 in words is "sixty-four billion, five hundred nineteen million, fifty-five thousand, four hundred seventy".