2291543686472 has 16 divisors (see below), whose sum is σ = 4296672099900. Its totient is φ = 1145764459840.

The previous prime is 2291543686469. The next prime is 2291543686489. The reversal of 2291543686472 is 2746863451922.

It can be written as a sum of positive squares in 2 ways, for example, as 2151836683396 + 139707003076 = 1466914^2 + 373774^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 530822 + ... + 2205642.

Almost surely, 2^{2291543686472} is an apocalyptic number.

It is an amenable number.

2291543686472 is a deficient number, since it is larger than the sum of its proper divisors (2005128413428).

2291543686472 is a wasteful number, since it uses less digits than its factorization.

2291543686472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845856 (or 1845852 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 59.

The spelling of 2291543686472 in words is "two trillion, two hundred ninety-one billion, five hundred forty-three million, six hundred eighty-six thousand, four hundred seventy-two".