677940186348 has 144 divisors (see below), whose sum is σ = 1853501045760. Its totient is φ = 208397452032.

The previous prime is 677940186323. The next prime is 677940186349. The reversal of 677940186348 is 843681049776.

677940186348 is a `hidden beast` number, since 6 + 7 + 79 + 40 + 186 + 348 = 666.

677940186348 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (677940186349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2477368 + ... + 2737376.

It is an arithmetic number, because the mean of its divisors is an integer number (12871535040).

Almost surely, 2^677940186348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677940186348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926750522880).

677940186348 is an abundant number, since it is smaller than the sum of its proper divisors (1175560859412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677940186348 is a wasteful number, since it uses less digits than its factorization.

677940186348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260156 (or 260151 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 677940186348 in words is "six hundred seventy-seven billion, nine hundred forty million, one hundred eighty-six thousand, three hundred forty-eight".