677248477813 has 4 divisors (see below), whose sum is σ = 712893134560. Its totient is φ = 641603821068.

The previous prime is 677248477709. The next prime is 677248477817. The reversal of 677248477813 is 318774842776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677248477813 - 2¹⁷ = 677248346741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677248477817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17822328345 + ... + 17822328382.

It is an arithmetic number, because the mean of its divisors is an integer number (178223283640).

Almost surely, 2^677248477813 is an apocalyptic number.

It is an amenable number.

677248477813 is a deficient number, since it is larger than the sum of its proper divisors (35644656747).

677248477813 is a wasteful number, since it uses less digits than its factorization.

677248477813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35644656746.

The product of its digits is 88510464, while the sum is 64.

The spelling of 677248477813 in words is "six hundred seventy-seven billion, two hundred forty-eight million, four hundred seventy-seven thousand, eight hundred thirteen".