94781216564 has 12 divisors (see below), whose sum is σ = 167334980484. Its totient is φ = 46971222144.

The previous prime is 94781216561. The next prime is 94781216567. The reversal of 94781216564 is 46561218749.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (94781216561) and next prime (94781216567).

It can be written as a sum of positive squares in 2 ways, for example, as 7206651664 + 87574564900 = 84892^2 + 295930^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94781216561) by changing a digit.

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, 104846027 + ... + 104846930.

It is an arithmetic number, because the mean of its divisors is an integer number (13944581707).

Almost surely, 2^94781216564 is an apocalyptic number.

It is an amenable number.

94781216564 is a deficient number, since it is larger than the sum of its proper divisors (72553763920).

94781216564 is a wasteful number, since it uses less digits than its factorization.

94781216564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209693074 (or 209693072 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The spelling of 94781216564 in words is "ninety-four billion, seven hundred eighty-one million, two hundred sixteen thousand, five hundred sixty-four".