1101899481757 has 2 divisors, whose sum is σ = 1101899481758. Its totient is φ = 1101899481756.

The previous prime is 1101899481751. The next prime is 1101899481769. The reversal of 1101899481757 is 7571849981011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734870704516 + 367028777241 = 857246^2 + 605829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101899481757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101899481695 and 1101899481704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101899481751) 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, 550949740878 + 550949740879.

It is an arithmetic number, because the mean of its divisors is an integer number (550949740879).

Almost surely, 2^{1101899481757} is an apocalyptic number.

It is an amenable number.

1101899481757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101899481757 is an equidigital number, since it uses as much as digits as its factorization.

1101899481757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 61.

The spelling of 1101899481757 in words is "one trillion, one hundred one billion, eight hundred ninety-nine million, four hundred eighty-one thousand, seven hundred fifty-seven".