5185556677 has 4 divisors (see below), whose sum is σ = 5926350496. Its totient is φ = 4444762860.

The previous prime is 5185556641. The next prime is 5185556693. The reversal of 5185556677 is 7766555815.

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 5185556677 - 2¹¹ = 5185554629 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 (5185551677) 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, 370396899 + ... + 370396912.

It is an arithmetic number, because the mean of its divisors is an integer number (1481587624).

Almost surely, 2^5185556677 is an apocalyptic number.

It is an amenable number.

5185556677 is a deficient number, since it is larger than the sum of its proper divisors (740793819).

5185556677 is an equidigital number, since it uses as much as digits as its factorization.

5185556677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740793818.

The product of its digits is 8820000, while the sum is 55.

The square root of 5185556677 is about 72010.8094455270. The cubic root of 5185556677 is about 1730.8727013478.

The spelling of 5185556677 in words is "five billion, one hundred eighty-five million, five hundred fifty-six thousand, six hundred seventy-seven".