76349911321891 has 2 divisors, whose sum is σ = 76349911321892. Its totient is φ = 76349911321890.

The previous prime is 76349911321889. The next prime is 76349911321921. The reversal of 76349911321891 is 19812311994367.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76349911321891 - 2¹ = 76349911321889 is a prime.

Together with 76349911321889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (76349911321291) 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, 38174955660945 + 38174955660946.

It is an arithmetic number, because the mean of its divisors is an integer number (38174955660946).

Almost surely, 2^{76349911321891} is an apocalyptic number.

76349911321891 is a deficient number, since it is larger than the sum of its proper divisors (1).

76349911321891 is an equidigital number, since it uses as much as digits as its factorization.

76349911321891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 64.

The spelling of 76349911321891 in words is "seventy-six trillion, three hundred forty-nine billion, nine hundred eleven million, three hundred twenty-one thousand, eight hundred ninety-one".