2259779461 has 2 divisors, whose sum is σ = 2259779462. Its totient is φ = 2259779460.

The previous prime is 2259779447. The next prime is 2259779471. The reversal of 2259779461 is 1649779522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1772915236 + 486864225 = 42106^2 + 22065^2 .

It is a cyclic number.

It is not a de Polignac number, because 2259779461 - 2²⁹ = 1722908549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2259779399 and 2259779408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2259779471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129889730 + 1129889731.

It is an arithmetic number, because the mean of its divisors is an integer number (1129889731).

Almost surely, 2^2259779461 is an apocalyptic number.

It is an amenable number.

2259779461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2259779461 is an equidigital number, since it uses as much as digits as its factorization.

2259779461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 52.

The square root of 2259779461 is about 47537.1377030633. The cubic root of 2259779461 is about 1312.2664301043.

The spelling of 2259779461 in words is "two billion, two hundred fifty-nine million, seven hundred seventy-nine thousand, four hundred sixty-one".