64322787085 has 8 divisors (see below), whose sum is σ = 79273489176. Its totient is φ = 50067466560.

The previous prime is 64322787083. The next prime is 64322787097. The reversal of 64322787085 is 58078722346.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14116766596 + 50206020489 = 118814^2 + 224067^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64322787085 - 2¹ = 64322787083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64322787083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173845186 + ... + 173845555.

It is an arithmetic number, because the mean of its divisors is an integer number (9909186147).

Almost surely, 2^64322787085 is an apocalyptic number.

It is an amenable number.

64322787085 is a deficient number, since it is larger than the sum of its proper divisors (14950702091).

64322787085 is a wasteful number, since it uses less digits than its factorization.

64322787085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347690783.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 64322787085 in words is "sixty-four billion, three hundred twenty-two million, seven hundred eighty-seven thousand, eighty-five".