1058254781917 has 2 divisors, whose sum is σ = 1058254781918. Its totient is φ = 1058254781916.

The previous prime is 1058254781873. The next prime is 1058254782059. The reversal of 1058254781917 is 7191874528501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 909068809401 + 149185972516 = 953451^2 + 386246^2 .

It is a cyclic number.

It is not a de Polignac number, because 1058254781917 - 2¹⁹ = 1058254257629 is a prime.

It is a super-4 number, since 4×1058254781917⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1058254781117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529127390958 + 529127390959.

It is an arithmetic number, because the mean of its divisors is an integer number (529127390959).

Almost surely, 2^{1058254781917} is an apocalyptic number.

It is an amenable number.

1058254781917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1058254781917 is an equidigital number, since it uses as much as digits as its factorization.

1058254781917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5644800, while the sum is 58.

The spelling of 1058254781917 in words is "one trillion, fifty-eight billion, two hundred fifty-four million, seven hundred eighty-one thousand, nine hundred seventeen".