64538883546 has 16 divisors (see below), whose sum is σ = 129689512608. Its totient is φ = 21411003600.

The previous prime is 64538883533. The next prime is 64538883569.

64538883546 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 64538883546.

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 7 ways as a sum of consecutive naturals, for example, 25488025 + ... + 25490556.

It is an arithmetic number, because the mean of its divisors is an integer number (8105594538).

Almost surely, 2^64538883546 is an apocalyptic number.

64538883546 is an abundant number, since it is smaller than the sum of its proper divisors (65150629062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64538883546 is a wasteful number, since it uses less digits than its factorization.

64538883546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50978797.

The product of its digits is 66355200, while the sum is 60.

The spelling of 64538883546 in words is "sixty-four billion, five hundred thirty-eight million, eight hundred eighty-three thousand, five hundred forty-six".