64387538806 has 8 divisors (see below), whose sum is σ = 96661729224. Its totient is φ = 32166962400.

The previous prime is 64387538797. The next prime is 64387538837. The reversal of 64387538806 is 60883578346.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13400500 + ... + 13405303.

It is an arithmetic number, because the mean of its divisors is an integer number (12082716153).

Almost surely, 2^64387538806 is an apocalyptic number.

64387538806 is a deficient number, since it is larger than the sum of its proper divisors (32274190418).

64387538806 is a wasteful number, since it uses less digits than its factorization.

64387538806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26807006.

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 64387538806 in words is "sixty-four billion, three hundred eighty-seven million, five hundred thirty-eight thousand, eight hundred six".