677768326526 has 8 divisors (see below), whose sum is σ = 1021813162920. Its totient is φ = 337163938888.

The previous prime is 677768326517. The next prime is 677768326541. The reversal of 677768326526 is 625623867776.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860111696 + ... + 860112483.

It is an arithmetic number, because the mean of its divisors is an integer number (127726645365).

Almost surely, 2^677768326526 is an apocalyptic number.

677768326526 is a deficient number, since it is larger than the sum of its proper divisors (344044836394).

677768326526 is a wasteful number, since it uses less digits than its factorization.

677768326526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720224378.

The product of its digits is 213373440, while the sum is 65.

The spelling of 677768326526 in words is "six hundred seventy-seven billion, seven hundred sixty-eight million, three hundred twenty-six thousand, five hundred twenty-six".