76115220449 has 2 divisors, whose sum is σ = 76115220450. Its totient is φ = 76115220448.

The previous prime is 76115220443. The next prime is 76115220451. The reversal of 76115220449 is 94402251167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68861632225 + 7253588224 = 262415^2 + 85168^2 .

It is a cyclic number.

It is not a de Polignac number, because 76115220449 - 2⁸ = 76115220193 is a prime.

Together with 76115220451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76115220443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38057610224 + 38057610225.

It is an arithmetic number, because the mean of its divisors is an integer number (38057610225).

Almost surely, 2^76115220449 is an apocalyptic number.

It is an amenable number.

76115220449 is a deficient number, since it is larger than the sum of its proper divisors (1).

76115220449 is an equidigital number, since it uses as much as digits as its factorization.

76115220449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 76115220449 in words is "seventy-six billion, one hundred fifteen million, two hundred twenty thousand, four hundred forty-nine".