677220766563 has 32 divisors (see below), whose sum is σ = 990491639040. Its totient is φ = 408174018560.

The previous prime is 677220766529. The next prime is 677220766637. The reversal of 677220766563 is 365667022776.

677220766563 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 677220766563 - 2⁶ = 677220766499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677220768563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5168068 + ... + 5297486.

It is an arithmetic number, because the mean of its divisors is an integer number (30952863720).

Almost surely, 2^677220766563 is an apocalyptic number.

677220766563 is a deficient number, since it is larger than the sum of its proper divisors (313270872477).

677220766563 is a wasteful number, since it uses less digits than its factorization.

677220766563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130307.

The product of its (nonzero) digits is 26671680, while the sum is 57.

The spelling of 677220766563 in words is "six hundred seventy-seven billion, two hundred twenty million, seven hundred sixty-six thousand, five hundred sixty-three".