77354235427 has 16 divisors (see below), whose sum is σ = 91734441984. Its totient is φ = 63828828000.

The previous prime is 77354235391. The next prime is 77354235437. The reversal of 77354235427 is 72453245377.

It is a de Polignac number, because none of the positive numbers 2^k-77354235427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77354235437) 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 in 15 ways as a sum of consecutive naturals, for example, 891724 + ... + 974617.

It is an arithmetic number, because the mean of its divisors is an integer number (5733402624).

Almost surely, 2^77354235427 is an apocalyptic number.

77354235427 is a deficient number, since it is larger than the sum of its proper divisors (14380206557).

77354235427 is a wasteful number, since it uses less digits than its factorization.

77354235427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866570.

The product of its digits is 4939200, while the sum is 49.

The spelling of 77354235427 in words is "seventy-seven billion, three hundred fifty-four million, two hundred thirty-five thousand, four hundred twenty-seven".