1100005805797 has 2 divisors, whose sum is σ = 1100005805798. Its totient is φ = 1100005805796.

The previous prime is 1100005805753. The next prime is 1100005805837. The reversal of 1100005805797 is 7975085000011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 869311952161 + 230693853636 = 932369^2 + 480306^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100005805797 - 2³⁵ = 1065646067429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100005805497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550002902898 + 550002902899.

It is an arithmetic number, because the mean of its divisors is an integer number (550002902899).

Almost surely, 2^{1100005805797} is an apocalyptic number.

It is an amenable number.

1100005805797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100005805797 is an equidigital number, since it uses as much as digits as its factorization.

1100005805797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 43.

The spelling of 1100005805797 in words is "one trillion, one hundred billion, five million, eight hundred five thousand, seven hundred ninety-seven".