77257774123 has 2 divisors, whose sum is σ = 77257774124. Its totient is φ = 77257774122.

The previous prime is 77257774093. The next prime is 77257774177. The reversal of 77257774123 is 32147775277.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77257774123 - 2²⁹ = 76720903211 is a prime.

It is not a weakly prime, because it can be changed into another prime (77257774193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38628887061 + 38628887062.

It is an arithmetic number, because the mean of its divisors is an integer number (38628887062).

Almost surely, 2^77257774123 is an apocalyptic number.

77257774123 is a deficient number, since it is larger than the sum of its proper divisors (1).

77257774123 is an equidigital number, since it uses as much as digits as its factorization.

77257774123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4033680, while the sum is 52.

The spelling of 77257774123 in words is "seventy-seven billion, two hundred fifty-seven million, seven hundred seventy-four thousand, one hundred twenty-three".