677778118 has 8 divisors (see below), whose sum is σ = 1017710712. Its totient is φ = 338541216.

The previous prime is 677778077. The next prime is 677778121. The reversal of 677778118 is 811877776.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171480 + ... + 175387.

It is an arithmetic number, because the mean of its divisors is an integer number (127213839).

Almost surely, 2^677778118 is an apocalyptic number.

677778118 is a deficient number, since it is larger than the sum of its proper divisors (339932594).

677778118 is a wasteful number, since it uses less digits than its factorization.

677778118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347846.

The product of its digits is 921984, while the sum is 52.

The square root of 677778118 is about 26034.1721205035. The cubic root of 677778118 is about 878.4071210686.

The spelling of 677778118 in words is "six hundred seventy-seven million, seven hundred seventy-eight thousand, one hundred eighteen".