64875687146 has 8 divisors (see below), whose sum is σ = 98765971680. Its totient is φ = 31953696588.

The previous prime is 64875687137. The next prime is 64875687197. The reversal of 64875687146 is 64178657846.

It is a happy number.

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

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, 242073326 + ... + 242073593.

It is an arithmetic number, because the mean of its divisors is an integer number (12345746460).

Almost surely, 2^64875687146 is an apocalyptic number.

64875687146 is a deficient number, since it is larger than the sum of its proper divisors (33890284534).

64875687146 is a wasteful number, since it uses less digits than its factorization.

64875687146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484146988.

The product of its digits is 54190080, while the sum is 62.

The spelling of 64875687146 in words is "sixty-four billion, eight hundred seventy-five million, six hundred eighty-seven thousand, one hundred forty-six".