677357361643 has 4 divisors (see below), whose sum is σ = 677362711600. Its totient is φ = 677352011688.

The previous prime is 677357361557. The next prime is 677357361647. The reversal of 677357361643 is 346163753776.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677357361643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677357361647) 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 3 ways as a sum of consecutive naturals, for example, 2480343 + ... + 2739856.

It is an arithmetic number, because the mean of its divisors is an integer number (169340677900).

Almost surely, 2^677357361643 is an apocalyptic number.

677357361643 is a deficient number, since it is larger than the sum of its proper divisors (5349957).

677357361643 is a wasteful number, since it uses less digits than its factorization.

677357361643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349956.

The product of its digits is 40007520, while the sum is 58.

The spelling of 677357361643 in words is "six hundred seventy-seven billion, three hundred fifty-seven million, three hundred sixty-one thousand, six hundred forty-three".