76124978077 has 2 divisors, whose sum is σ = 76124978078. Its totient is φ = 76124978076.

The previous prime is 76124978023. The next prime is 76124978129. The reversal of 76124978077 is 77087942167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75727334596 + 397643481 = 275186^2 + 19941^2 .

It is a cyclic number.

It is not a de Polignac number, because 76124978077 - 2⁷ = 76124977949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76124978177) 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, 38062489038 + 38062489039.

It is an arithmetic number, because the mean of its divisors is an integer number (38062489039).

Almost surely, 2^76124978077 is an apocalyptic number.

It is an amenable number.

76124978077 is a deficient number, since it is larger than the sum of its proper divisors (1).

76124978077 is an equidigital number, since it uses as much as digits as its factorization.

76124978077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8297856, while the sum is 58.

The spelling of 76124978077 in words is "seventy-six billion, one hundred twenty-four million, nine hundred seventy-eight thousand, seventy-seven".