64847474846 has 48 divisors (see below), whose sum is σ = 123475890672. Its totient is φ = 25257657600.

The previous prime is 64847474771. The next prime is 64847474851.

64847474846 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4733126 + ... + 4746806.

It is an arithmetic number, because the mean of its divisors is an integer number (2572414389).

Almost surely, 2^64847474846 is an apocalyptic number.

64847474846 is a deficient number, since it is larger than the sum of its proper divisors (58628415826).

64847474846 is a wasteful number, since it uses less digits than its factorization.

64847474846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18105 (or 18098 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 62.

The spelling of 64847474846 in words is "sixty-four billion, eight hundred forty-seven million, four hundred seventy-four thousand, eight hundred forty-six".