64746864746 has 8 divisors (see below), whose sum is σ = 97123056804. Its totient is φ = 32372512480.

The previous prime is 64746864701. The next prime is 64746864757.

64746864746 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 64408856521 + 338008225 = 253789^2 + 18385^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 368315 + ... + 514926.

Almost surely, 2^64746864746 is an apocalyptic number.

64746864746 is a deficient number, since it is larger than the sum of its proper divisors (32376192058).

64746864746 is a wasteful number, since it uses less digits than its factorization.

64746864746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919896.

The product of its digits is 130056192, while the sum is 62.

The spelling of 64746864746 in words is "sixty-four billion, seven hundred forty-six million, eight hundred sixty-four thousand, seven hundred forty-six".