259791749461 has 2 divisors, whose sum is σ = 259791749462. Its totient is φ = 259791749460.

The previous prime is 259791749369. The next prime is 259791749467. The reversal of 259791749461 is 164947197952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131420025361 + 128371724100 = 362519^2 + 358290^2 .

It is a cyclic number.

It is not a de Polignac number, because 259791749461 - 2³⁷ = 122352795989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 259791749393 and 259791749402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259791749467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129895874730 + 129895874731.

It is an arithmetic number, because the mean of its divisors is an integer number (129895874731).

Almost surely, 2^259791749461 is an apocalyptic number.

It is an amenable number.

259791749461 is a deficient number, since it is larger than the sum of its proper divisors (1).

259791749461 is an equidigital number, since it uses as much as digits as its factorization.

259791749461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 64.

The spelling of 259791749461 in words is "two hundred fifty-nine billion, seven hundred ninety-one million, seven hundred forty-nine thousand, four hundred sixty-one".