2666431423474 has 48 divisors (see below), whose sum is σ = 5105085711768. Its totient is φ = 1034949097728.

The previous prime is 2666431423433. The next prime is 2666431423477. The reversal of 2666431423474 is 4743241346662.

It can be written as a sum of positive squares in 4 ways, for example, as 2450398890625 + 216032532849 = 1565375^2 + 464793^2 .

It is not an unprimeable number, because it can be changed into a prime (2666431423477) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 19677387 + ... + 19812430.

Almost surely, 2^{2666431423474} is an apocalyptic number.

2666431423474 is a deficient number, since it is larger than the sum of its proper divisors (2438654288294).

2666431423474 is a wasteful number, since it uses less digits than its factorization.

2666431423474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39489899 (or 39489892 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 52.

The spelling of 2666431423474 in words is "two trillion, six hundred sixty-six billion, four hundred thirty-one million, four hundred twenty-three thousand, four hundred seventy-four".