677388201864 has 64 divisors (see below), whose sum is σ = 1847843426880. Its totient is φ = 205222368000.

The previous prime is 677388201713. The next prime is 677388201869. The reversal of 677388201864 is 468102883776.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 677388201798 and 677388201807.

It is not an unprimeable number, because it can be changed into a prime (677388201869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 876954 + ... + 1457334.

It is an arithmetic number, because the mean of its divisors is an integer number (28872553545).

Almost surely, 2^677388201864 is an apocalyptic number.

It is an amenable number.

677388201864 is an abundant number, since it is smaller than the sum of its proper divisors (1170455225016).

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

677388201864 is a wasteful number, since it uses less digits than its factorization.

677388201864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584822 (or 584818 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 60.

The spelling of 677388201864 in words is "six hundred seventy-seven billion, three hundred eighty-eight million, two hundred one thousand, eight hundred sixty-four".