64382832787 has 24 divisors (see below), whose sum is σ = 80817450000. Its totient is φ = 50837927616.

The previous prime is 64382832743. The next prime is 64382832809. The reversal of 64382832787 is 78723828346.

It is a happy number.

It is not a de Polignac number, because 64382832787 - 2²⁷ = 64248615059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64382832707) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 216589 + ... + 419137.

It is an arithmetic number, because the mean of its divisors is an integer number (3367393750).

Almost surely, 2^64382832787 is an apocalyptic number.

64382832787 is a deficient number, since it is larger than the sum of its proper divisors (16434617213).

64382832787 is a wasteful number, since it uses less digits than its factorization.

64382832787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203075 (or 203068 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 58.

It can be divided in two parts, 6438 and 2832787, that added together give a square (2839225 = 1685²).

The spelling of 64382832787 in words is "sixty-four billion, three hundred eighty-two million, eight hundred thirty-two thousand, seven hundred eighty-seven".