9765091421149 has 2 divisors, whose sum is σ = 9765091421150. Its totient is φ = 9765091421148.

The previous prime is 9765091421081. The next prime is 9765091421167. The reversal of 9765091421149 is 9411241905679.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9170176932900 + 594914488249 = 3028230^2 + 771307^2 .

It is an emirp because it is prime and its reverse (9411241905679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9765091421149 - 2¹³ = 9765091412957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9765091421093 and 9765091421102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9765091421249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4882545710574 + 4882545710575.

It is an arithmetic number, because the mean of its divisors is an integer number (4882545710575).

Almost surely, 2^{9765091421149} is an apocalyptic number.

It is an amenable number.

9765091421149 is a deficient number, since it is larger than the sum of its proper divisors (1).

9765091421149 is an equidigital number, since it uses as much as digits as its factorization.

9765091421149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 9765091421149 in words is "nine trillion, seven hundred sixty-five billion, ninety-one million, four hundred twenty-one thousand, one hundred forty-nine".