677102202009 has 6 divisors (see below), whose sum is σ = 978036514026. Its totient is φ = 451401468000.

The previous prime is 677102201999. The next prime is 677102202011. The reversal of 677102202009 is 900202201776.

It can be written as a sum of positive squares in only one way, i.e., 406697001984 + 270405200025 = 637728^2 + 520005^2 .

It is not a de Polignac number, because 677102202009 - 2¹² = 677102197913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677102202109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37616788992 + ... + 37616789009.

It is an arithmetic number, because the mean of its divisors is an integer number (163006085671).

Almost surely, 2^677102202009 is an apocalyptic number.

It is an amenable number.

677102202009 is a deficient number, since it is larger than the sum of its proper divisors (300934312017).

677102202009 is a wasteful number, since it uses less digits than its factorization.

677102202009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75233578007 (or 75233578004 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 677102202009 in words is "six hundred seventy-seven billion, one hundred two million, two hundred two thousand, nine".