76404058781 has 2 divisors, whose sum is σ = 76404058782. Its totient is φ = 76404058780.

The previous prime is 76404058763. The next prime is 76404058799. The reversal of 76404058781 is 18785040467.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (76404058763) and next prime (76404058799).

It can be written as a sum of positive squares in only one way, i.e., 39112972900 + 37291085881 = 197770^2 + 193109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76404058781 is a prime.

It is a super-2 number, since 2×76404058781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76404058721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38202029390 + 38202029391.

It is an arithmetic number, because the mean of its divisors is an integer number (38202029391).

Almost surely, 2^76404058781 is an apocalyptic number.

It is an amenable number.

76404058781 is a deficient number, since it is larger than the sum of its proper divisors (1).

76404058781 is an equidigital number, since it uses as much as digits as its factorization.

76404058781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 76404058781 in words is "seventy-six billion, four hundred four million, fifty-eight thousand, seven hundred eighty-one".