64216861246 has 8 divisors (see below), whose sum is σ = 96567926040. Its totient is φ = 32027552568.

The previous prime is 64216861231. The next prime is 64216861253.

64216861246 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 64216861196 and 64216861205.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40438036 + ... + 40439623.

It is an arithmetic number, because the mean of its divisors is an integer number (12070990755).

Almost surely, 2^64216861246 is an apocalyptic number.

64216861246 is a deficient number, since it is larger than the sum of its proper divisors (32351064794).

64216861246 is a wasteful number, since it uses less digits than its factorization.

64216861246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80878058.

The product of its digits is 663552, while the sum is 46.

The spelling of 64216861246 in words is "sixty-four billion, two hundred sixteen million, eight hundred sixty-one thousand, two hundred forty-six".