64530226775 has 48 divisors (see below), whose sum is σ = 96536083200. Its totient is φ = 41800872960.

The previous prime is 64530226769. The next prime is 64530226801. The reversal of 64530226775 is 57762203546.

It is not a de Polignac number, because 64530226775 - 2¹⁰ = 64530225751 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 47 ways as a sum of consecutive naturals, for example, 1146236 + ... + 1201214.

It is an arithmetic number, because the mean of its divisors is an integer number (2011168400).

Almost surely, 2^64530226775 is an apocalyptic number.

64530226775 is a deficient number, since it is larger than the sum of its proper divisors (32005856425).

64530226775 is a wasteful number, since it uses less digits than its factorization.

64530226775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55368 (or 55363 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 64530226775 in words is "sixty-four billion, five hundred thirty million, two hundred twenty-six thousand, seven hundred seventy-five".