2261293893394 has 4 divisors (see below), whose sum is σ = 3391940840094. Its totient is φ = 1130646946696.

The previous prime is 2261293893361. The next prime is 2261293893403. The reversal of 2261293893394 is 4933983921622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2119513781025 + 141780112369 = 1455855^2 + 376537^2 .

It is a super-2 number, since 2×2261293893394² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565323473347 + ... + 565323473350.

Almost surely, 2^{2261293893394} is an apocalyptic number.

2261293893394 is a deficient number, since it is larger than the sum of its proper divisors (1130646946700).

2261293893394 is a wasteful number, since it uses less digits than its factorization.

2261293893394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130646946699.

The product of its digits is 30233088, while the sum is 61.

The spelling of 2261293893394 in words is "two trillion, two hundred sixty-one billion, two hundred ninety-three million, eight hundred ninety-three thousand, three hundred ninety-four".