77734824265438 has 16 divisors (see below), whose sum is σ = 116740260134784. Its totient is φ = 38821405749120.

The previous prime is 77734824265379. The next prime is 77734824265459. The reversal of 77734824265438 is 83456242843777.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 110935618 + ... + 111634138.

It is an arithmetic number, because the mean of its divisors is an integer number (7296266258424).

Almost surely, 2^{77734824265438} is an apocalyptic number.

77734824265438 is a deficient number, since it is larger than the sum of its proper divisors (39005435869346).

77734824265438 is a wasteful number, since it uses less digits than its factorization.

77734824265438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764307.

The product of its digits is 1517322240, while the sum is 70.

The spelling of 77734824265438 in words is "seventy-seven trillion, seven hundred thirty-four billion, eight hundred twenty-four million, two hundred sixty-five thousand, four hundred thirty-eight".