76128333685477 has 2 divisors, whose sum is σ = 76128333685478. Its totient is φ = 76128333685476.

The previous prime is 76128333685457. The next prime is 76128333685501. The reversal of 76128333685477 is 77458633382167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42732486666081 + 33395847019396 = 6537009^2 + 5778914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76128333685477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76128333685457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38064166842738 + 38064166842739.

It is an arithmetic number, because the mean of its divisors is an integer number (38064166842739).

Almost surely, 2^{76128333685477} is an apocalyptic number.

It is an amenable number.

76128333685477 is a deficient number, since it is larger than the sum of its proper divisors (1).

76128333685477 is an equidigital number, since it uses as much as digits as its factorization.

76128333685477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 853493760, while the sum is 70.

The spelling of 76128333685477 in words is "seventy-six trillion, one hundred twenty-eight billion, three hundred thirty-three million, six hundred eighty-five thousand, four hundred seventy-seven".