8555386240077 has 4 divisors (see below), whose sum is σ = 11407181653440. Its totient is φ = 5703590826716.

The previous prime is 8555386240073. The next prime is 8555386240081. The reversal of 8555386240077 is 7700426835558.

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 an interprime number because it is at equal distance from previous prime (8555386240073) and next prime (8555386240081).

It is a cyclic number.

It is not a de Polignac number, because 8555386240077 - 2² = 8555386240073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8555386240077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8555386240073) 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, 1425897706677 + ... + 1425897706682.

It is an arithmetic number, because the mean of its divisors is an integer number (2851795413360).

Almost surely, 2^{8555386240077} is an apocalyptic number.

It is an amenable number.

8555386240077 is a deficient number, since it is larger than the sum of its proper divisors (2851795413363).

8555386240077 is a wasteful number, since it uses less digits than its factorization.

8555386240077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851795413362.

The product of its (nonzero) digits is 56448000, while the sum is 60.

The spelling of 8555386240077 in words is "eight trillion, five hundred fifty-five billion, three hundred eighty-six million, two hundred forty thousand, seventy-seven".