200091510076649 has 2 divisors, whose sum is σ = 200091510076650. Its totient is φ = 200091510076648.

The previous prime is 200091510076637. The next prime is 200091510076727. The reversal of 200091510076649 is 946670015190002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189234221475049 + 10857288601600 = 13756243^2 + 3295040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200091510076649 is a prime.

It is a super-2 number, since 2×200091510076649² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200091510076597 and 200091510076606.

It is not a weakly prime, because it can be changed into another prime (200091510006649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100045755038324 + 100045755038325.

It is an arithmetic number, because the mean of its divisors is an integer number (100045755038325).

Almost surely, 2^{200091510076649} is an apocalyptic number.

It is an amenable number.

200091510076649 is a deficient number, since it is larger than the sum of its proper divisors (1).

200091510076649 is an equidigital number, since it uses as much as digits as its factorization.

200091510076649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 200091510076649 in words is "two hundred trillion, ninety-one billion, five hundred ten million, seventy-six thousand, six hundred forty-nine".