77225555552277 has 48 divisors (see below), whose sum is σ = 118237696536960. Its totient is φ = 44716195307520.

The previous prime is 77225555552203. The next prime is 77225555552279.

It is a happy number.

77225555552277 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 77225555552277 - 2¹⁹ = 77225555027989 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77225555552279) 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 47 ways as a sum of consecutive naturals, for example, 1758549 + ... + 12551637.

It is an arithmetic number, because the mean of its divisors is an integer number (2463285344520).

Almost surely, 2^{77225555552277} is an apocalyptic number.

It is an amenable number.

77225555552277 is a deficient number, since it is larger than the sum of its proper divisors (41012140984683).

77225555552277 is a wasteful number, since it uses less digits than its factorization.

77225555552277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10793994 (or 10793983 counting only the distinct ones).

The product of its digits is 600250000, while the sum is 66.

The spelling of 77225555552277 in words is "seventy-seven trillion, two hundred twenty-five billion, five hundred fifty-five million, five hundred fifty-two thousand, two hundred seventy-seven".