64733254509 has 64 divisors (see below), whose sum is σ = 110146977792. Its totient is φ = 32843294400.

The previous prime is 64733254493. The next prime is 64733254519. The reversal of 64733254509 is 90545233746.

It is not a de Polignac number, because 64733254509 - 2⁴ = 64733254493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64733254519) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1736464 + ... + 1773350.

It is an arithmetic number, because the mean of its divisors is an integer number (1721046528).

Almost surely, 2^64733254509 is an apocalyptic number.

It is an amenable number.

64733254509 is a deficient number, since it is larger than the sum of its proper divisors (45413723283).

64733254509 is a wasteful number, since it uses less digits than its factorization.

64733254509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37086.

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 64733254509 in words is "sixty-four billion, seven hundred thirty-three million, two hundred fifty-four thousand, five hundred nine".