677163241409 has 4 divisors (see below), whose sum is σ = 681707961300. Its totient is φ = 672618521520.

The previous prime is 677163241397. The next prime is 677163241463. The reversal of 677163241409 is 904142361776.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106473647809 + 570689593600 = 326303^2 + 755440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677163241409 is a prime.

It is a super-2 number, since 2×677163241409² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677163241009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272359722 + ... + 2272360019.

It is an arithmetic number, because the mean of its divisors is an integer number (170426990325).

Almost surely, 2^677163241409 is an apocalyptic number.

It is an amenable number.

677163241409 is a deficient number, since it is larger than the sum of its proper divisors (4544719891).

677163241409 is a wasteful number, since it uses less digits than its factorization.

677163241409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544719890.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 677163241409 in words is "six hundred seventy-seven billion, one hundred sixty-three million, two hundred forty-one thousand, four hundred nine".