77700000877 has 4 divisors (see below), whose sum is σ = 77704669440. Its totient is φ = 77695332316.

The previous prime is 77700000863. The next prime is 77700000929. The reversal of 77700000877 is 77800000777.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77700000877 - 2¹¹ = 77699998829 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 (77700000857) 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, 2309227 + ... + 2342632.

It is an arithmetic number, because the mean of its divisors is an integer number (19426167360).

Almost surely, 2^77700000877 is an apocalyptic number.

It is an amenable number.

77700000877 is a deficient number, since it is larger than the sum of its proper divisors (4668563).

77700000877 is a wasteful number, since it uses less digits than its factorization.

77700000877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668562.

The product of its (nonzero) digits is 134456, while the sum is 43.

The spelling of 77700000877 in words is "seventy-seven billion, seven hundred million, eight hundred seventy-seven", and thus it is an aban number.