93947312644 has 6 divisors (see below), whose sum is σ = 164407797134. Its totient is φ = 46973656320.

The previous prime is 93947312621. The next prime is 93947312651. The reversal of 93947312644 is 44621374939.

It can be written as a sum of positive squares in only one way, i.e., 93929990400 + 17322244 = 306480^2 + 4162^2 .

It is a junction number, because it is equal to n+sod(n) for n = 93947312591 and 93947312600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11743414077 + ... + 11743414084.

Almost surely, 2^93947312644 is an apocalyptic number.

It is an amenable number.

93947312644 is a deficient number, since it is larger than the sum of its proper divisors (70460484490).

93947312644 is a wasteful number, since it uses less digits than its factorization.

93947312644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23486828165 (or 23486828163 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 52.

The spelling of 93947312644 in words is "ninety-three billion, nine hundred forty-seven million, three hundred twelve thousand, six hundred forty-four".