2098490607757 has 2 divisors, whose sum is σ = 2098490607758. Its totient is φ = 2098490607756.

The previous prime is 2098490607739. The next prime is 2098490607761. The reversal of 2098490607757 is 7577060948902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1287183280681 + 811307327076 = 1134541^2 + 900726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2098490607757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2098490637757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049245303878 + 1049245303879.

It is an arithmetic number, because the mean of its divisors is an integer number (1049245303879).

Almost surely, 2^{2098490607757} is an apocalyptic number.

It is an amenable number.

2098490607757 is a deficient number, since it is larger than the sum of its proper divisors (1).

2098490607757 is an equidigital number, since it uses as much as digits as its factorization.

2098490607757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53343360, while the sum is 64.

The spelling of 2098490607757 in words is "two trillion, ninety-eight billion, four hundred ninety million, six hundred seven thousand, seven hundred fifty-seven".