2291686741 has 8 divisors (see below), whose sum is σ = 2315063960. Its totient is φ = 2268352512.

The previous prime is 2291686711. The next prime is 2291686757. The reversal of 2291686741 is 1476861922.

It can be written as a sum of positive squares in 4 ways, for example, as 1015696900 + 1275989841 = 31870^2 + 35721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2291686741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2291686691 and 2291686700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291686711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102421 + ... + 122773.

It is an arithmetic number, because the mean of its divisors is an integer number (289382995).

Almost surely, 2^2291686741 is an apocalyptic number.

It is an amenable number.

2291686741 is a deficient number, since it is larger than the sum of its proper divisors (23377219).

2291686741 is a wasteful number, since it uses less digits than its factorization.

2291686741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21495.

The product of its digits is 290304, while the sum is 46.

The square root of 2291686741 is about 47871.5650569312. The cubic root of 2291686741 is about 1318.4138318623.

The spelling of 2291686741 in words is "two billion, two hundred ninety-one million, six hundred eighty-six thousand, seven hundred forty-one".