686132326177 has 4 divisors (see below), whose sum is σ = 686134033200. Its totient is φ = 686130619156.

The previous prime is 686132326171. The next prime is 686132326193. The reversal of 686132326177 is 771623231686.

686132326177 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 686132326177 - 2³¹ = 683984842529 is a prime.

It is a super-2 number, since 2×686132326177² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686132326171) 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, 118074 + ... + 1177372.

It is an arithmetic number, because the mean of its divisors is an integer number (171533508300).

Almost surely, 2^686132326177 is an apocalyptic number.

It is an amenable number.

686132326177 is a deficient number, since it is larger than the sum of its proper divisors (1707023).

686132326177 is a wasteful number, since it uses less digits than its factorization.

686132326177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707022.

The product of its digits is 3048192, while the sum is 52.

The spelling of 686132326177 in words is "six hundred eighty-six billion, one hundred thirty-two million, three hundred twenty-six thousand, one hundred seventy-seven".