77433287845 has 16 divisors (see below), whose sum is σ = 101559564288. Its totient is φ = 56421976320.

The previous prime is 77433287837. The next prime is 77433287849. The reversal of 77433287845 is 54878233477.

It is not a de Polignac number, because 77433287845 - 2³ = 77433287837 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 77433287845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77433287849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14690589 + ... + 14695858.

It is an arithmetic number, because the mean of its divisors is an integer number (6347472768).

Almost surely, 2^77433287845 is an apocalyptic number.

It is an amenable number.

77433287845 is a deficient number, since it is larger than the sum of its proper divisors (24126276443).

77433287845 is a wasteful number, since it uses less digits than its factorization.

77433287845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29386500.

The product of its digits is 31610880, while the sum is 58.

The spelling of 77433287845 in words is "seventy-seven billion, four hundred thirty-three million, two hundred eighty-seven thousand, eight hundred forty-five".