77029850423 has 4 divisors (see below), whose sum is σ = 77475109848. Its totient is φ = 76584591000.

The previous prime is 77029850371. The next prime is 77029850467. The reversal of 77029850423 is 32405892077.

It is a happy number.

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 77029850423 - 2¹⁰ = 77029849399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77029850323) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 222629453 + ... + 222629798.

It is an arithmetic number, because the mean of its divisors is an integer number (19368777462).

Almost surely, 2^77029850423 is an apocalyptic number.

77029850423 is a deficient number, since it is larger than the sum of its proper divisors (445259425).

77029850423 is a wasteful number, since it uses less digits than its factorization.

77029850423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445259424.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 77029850423 in words is "seventy-seven billion, twenty-nine million, eight hundred fifty thousand, four hundred twenty-three".