677661611589 has 8 divisors (see below), whose sum is σ = 1003943128320. Its totient is φ = 451774407708.

The previous prime is 677661611581. The next prime is 677661611603. The reversal of 677661611589 is 985116166776.

677661611589 is a `hidden beast` number, since 6 + 7 + 7 + 6 + 6 + 1 + 611 + 5 + 8 + 9 = 666.

It is not a de Polignac number, because 677661611589 - 2³ = 677661611581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677661611581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12549289077 + ... + 12549289130.

It is an arithmetic number, because the mean of its divisors is an integer number (125492891040).

Almost surely, 2^677661611589 is an apocalyptic number.

It is an amenable number.

677661611589 is a deficient number, since it is larger than the sum of its proper divisors (326281516731).

677661611589 is a wasteful number, since it uses less digits than its factorization.

677661611589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25098578216 (or 25098578210 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The spelling of 677661611589 in words is "six hundred seventy-seven billion, six hundred sixty-one million, six hundred eleven thousand, five hundred eighty-nine".