76344219826261 has 2 divisors, whose sum is σ = 76344219826262. Its totient is φ = 76344219826260.

The previous prime is 76344219826159. The next prime is 76344219826291. The reversal of 76344219826261 is 16262891244367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59985179900100 + 16359039926161 = 7745010^2 + 4044631^2 .

It is an emirp because it is prime and its reverse (16262891244367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76344219826261 - 2⁹ = 76344219825749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76344219826261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76344219826291) 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, 38172109913130 + 38172109913131.

It is an arithmetic number, because the mean of its divisors is an integer number (38172109913131).

Almost surely, 2^{76344219826261} is an apocalyptic number.

It is an amenable number.

76344219826261 is a deficient number, since it is larger than the sum of its proper divisors (1).

76344219826261 is an equidigital number, since it uses as much as digits as its factorization.

76344219826261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41803776, while the sum is 61.

The spelling of 76344219826261 in words is "seventy-six trillion, three hundred forty-four billion, two hundred nineteen million, eight hundred twenty-six thousand, two hundred sixty-one".