677481549313 has 4 divisors (see below), whose sum is σ = 677710663380. Its totient is φ = 677252435248.

The previous prime is 677481549299. The next prime is 677481549319. The reversal of 677481549313 is 313945184776.

It is a happy number.

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 364360726129 + 313120823184 = 603623^2 + 559572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677481549313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677481549319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114552598 + ... + 114558511.

It is an arithmetic number, because the mean of its divisors is an integer number (169427665845).

Almost surely, 2^677481549313 is an apocalyptic number.

It is an amenable number.

677481549313 is a deficient number, since it is larger than the sum of its proper divisors (229114067).

677481549313 is a wasteful number, since it uses less digits than its factorization.

677481549313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229114066.

The product of its digits is 15240960, while the sum is 58.

The spelling of 677481549313 in words is "six hundred seventy-seven billion, four hundred eighty-one million, five hundred forty-nine thousand, three hundred thirteen".