2261783347157 has 2 divisors, whose sum is σ = 2261783347158. Its totient is φ = 2261783347156.

The previous prime is 2261783347091. The next prime is 2261783347211. The reversal of 2261783347157 is 7517433871622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2259989062276 + 1794284881 = 1503326^2 + 42359^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261783347157 - 2²⁶ = 2261716238293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261783341157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130891673578 + 1130891673579.

It is an arithmetic number, because the mean of its divisors is an integer number (1130891673579).

Almost surely, 2^{2261783347157} is an apocalyptic number.

It is an amenable number.

2261783347157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261783347157 is an equidigital number, since it uses as much as digits as its factorization.

2261783347157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 56.

The spelling of 2261783347157 in words is "two trillion, two hundred sixty-one billion, seven hundred eighty-three million, three hundred forty-seven thousand, one hundred fifty-seven".