77541338790443 has 4 divisors (see below), whose sum is σ = 84590551407768. Its totient is φ = 70492126173120.

The previous prime is 77541338790367. The next prime is 77541338790449. The reversal of 77541338790443 is 34409783314577.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77541338790443 - 2²⁴ = 77541322013227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77541338790443.

It is not an unprimeable number, because it can be changed into a prime (77541338790449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3524606308646 + ... + 3524606308667.

It is an arithmetic number, because the mean of its divisors is an integer number (21147637851942).

Almost surely, 2^{77541338790443} is an apocalyptic number.

77541338790443 is a deficient number, since it is larger than the sum of its proper divisors (7049212617325).

77541338790443 is a wasteful number, since it uses less digits than its factorization.

77541338790443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7049212617324.

The product of its (nonzero) digits is 213373440, while the sum is 65.

The spelling of 77541338790443 in words is "seventy-seven trillion, five hundred forty-one billion, three hundred thirty-eight million, seven hundred ninety thousand, four hundred forty-three".