677006310545 has 4 divisors (see below), whose sum is σ = 812407572660. Its totient is φ = 541605048432.

The previous prime is 677006310473. The next prime is 677006310553. The reversal of 677006310545 is 545013600776.

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 387451471936 + 289554838609 = 622456^2 + 538103^2 .

It is a cyclic number.

It is not a de Polignac number, because 677006310545 - 2¹⁶ = 677006245009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 677006310496 and 677006310505.

It is an unprimeable number.

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, 67700631050 + ... + 67700631059.

It is an arithmetic number, because the mean of its divisors is an integer number (203101893165).

Almost surely, 2^677006310545 is an apocalyptic number.

It is an amenable number.

677006310545 is a deficient number, since it is larger than the sum of its proper divisors (135401262115).

677006310545 is a wasteful number, since it uses less digits than its factorization.

677006310545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135401262114.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 677006310545 in words is "six hundred seventy-seven billion, six million, three hundred ten thousand, five hundred forty-five".