64373274687 has 8 divisors (see below), whose sum is σ = 86205841840. Its totient is φ = 42728112000.

The previous prime is 64373274677. The next prime is 64373274703. The reversal of 64373274687 is 78647237346.

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

It is not a de Polignac number, because 64373274687 - 2¹⁰ = 64373273663 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 (64373274607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46850314 + ... + 46851687.

It is an arithmetic number, because the mean of its divisors is an integer number (10775730230).

Almost surely, 2^64373274687 is an apocalyptic number.

64373274687 is a deficient number, since it is larger than the sum of its proper divisors (21832567153).

64373274687 is a wasteful number, since it uses less digits than its factorization.

64373274687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93702233.

The product of its digits is 28449792, while the sum is 57.

The spelling of 64373274687 in words is "sixty-four billion, three hundred seventy-three million, two hundred seventy-four thousand, six hundred eighty-seven".