77234043277 has 4 divisors (see below), whose sum is σ = 78500175196. Its totient is φ = 75967911360.

The previous prime is 77234043269. The next prime is 77234043283.

77234043277 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5852097001 + 71381946276 = 76499^2 + 267174^2 .

It is a cyclic number.

It is not a de Polignac number, because 77234043277 - 2³ = 77234043269 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 (77234043377) 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, 633065868 + ... + 633065989.

It is an arithmetic number, because the mean of its divisors is an integer number (19625043799).

Almost surely, 2^77234043277 is an apocalyptic number.

It is an amenable number.

77234043277 is a deficient number, since it is larger than the sum of its proper divisors (1266131919).

77234043277 is a wasteful number, since it uses less digits than its factorization.

77234043277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266131918.

The product of its (nonzero) digits is 1382976, while the sum is 46.

The spelling of 77234043277 in words is "seventy-seven billion, two hundred thirty-four million, forty-three thousand, two hundred seventy-seven".