677142855 has 16 divisors (see below), whose sum is σ = 1203809760. Its totient is φ = 361142784.

The previous prime is 677142821. The next prime is 677142857. The reversal of 677142855 is 558241776.

It is not a de Polignac number, because 677142855 - 2²⁵ = 643588423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 677142855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677142857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2507802 + ... + 2508071.

It is an arithmetic number, because the mean of its divisors is an integer number (75238110).

Almost surely, 2^677142855 is an apocalyptic number.

677142855 is a deficient number, since it is larger than the sum of its proper divisors (526666905).

677142855 is a wasteful number, since it uses less digits than its factorization.

677142855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015887 (or 5015881 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 677142855 is about 26021.9686995431. The cubic root of 677142855 is about 878.1325995805.

The spelling of 677142855 in words is "six hundred seventy-seven million, one hundred forty-two thousand, eight hundred fifty-five".