2279666685393 has 40 divisors (see below), whose sum is σ = 3497018623560. Its totient is φ = 1479083950080.

The previous prime is 2279666685383. The next prime is 2279666685533. The reversal of 2279666685393 is 3935866669722.

It can be written as a sum of positive squares in 4 ways, for example, as 483147327744 + 1796519357649 = 695088^2 + 1340343^2 .

It is not a de Polignac number, because 2279666685393 - 2¹² = 2279666681297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2279666685383) by changing a digit.

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 in 39 ways as a sum of consecutive naturals, for example, 519121 + ... + 2197457.

It is an arithmetic number, because the mean of its divisors is an integer number (87425465589).

Almost surely, 2^{2279666685393} is an apocalyptic number.

It is an amenable number.

2279666685393 is a deficient number, since it is larger than the sum of its proper divisors (1217351938167).

2279666685393 is a wasteful number, since it uses less digits than its factorization.

2279666685393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678799 (or 1678790 counting only the distinct ones).

The product of its digits is 1058158080, while the sum is 72.

The spelling of 2279666685393 in words is "two trillion, two hundred seventy-nine billion, six hundred sixty-six million, six hundred eighty-five thousand, three hundred ninety-three".