946437686734649 has 4 divisors (see below), whose sum is σ = 946442294785764. Its totient is φ = 946433078683536.

The previous prime is 946437686734637. The next prime is 946437686734747.

946437686734649 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37704905146624 + 908732781588025 = 6140432^2 + 30145195^2 .

It is a cyclic number.

It is not a de Polignac number, because 946437686734649 - 2¹⁶ = 946437686669113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (946437686734949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2303717462 + ... + 2304128255.

It is an arithmetic number, because the mean of its divisors is an integer number (236610573696441).

Almost surely, 2^{946437686734649} is an apocalyptic number.

It is an amenable number.

946437686734649 is a deficient number, since it is larger than the sum of its proper divisors (4608051115).

946437686734649 is a wasteful number, since it uses less digits than its factorization.

946437686734649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608051114.

The product of its digits is 94810963968, while the sum is 86.

The spelling of 946437686734649 in words is "nine hundred forty-six trillion, four hundred thirty-seven billion, six hundred eighty-six million, seven hundred thirty-four thousand, six hundred forty-nine".