100091510075449 has 2 divisors, whose sum is σ = 100091510075450. Its totient is φ = 100091510075448.

The previous prime is 100091510075437. The next prime is 100091510075467. The reversal of 100091510075449 is 944570015190001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90365176723600 + 9726333351849 = 9506060^2 + 3118707^2 .

It is an emirp because it is prime and its reverse (944570015190001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100091510075449 - 2¹⁵ = 100091510042681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100091510075399 and 100091510075408.

It is not a weakly prime, because it can be changed into another prime (100091510075849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50045755037724 + 50045755037725.

It is an arithmetic number, because the mean of its divisors is an integer number (50045755037725).

Almost surely, 2^{100091510075449} is an apocalyptic number.

It is an amenable number.

100091510075449 is a deficient number, since it is larger than the sum of its proper divisors (1).

100091510075449 is an equidigital number, since it uses as much as digits as its factorization.

100091510075449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 100091510075449 in words is "one hundred trillion, ninety-one billion, five hundred ten million, seventy-five thousand, four hundred forty-nine".