77067832780256 has 24 divisors (see below), whose sum is σ = 158324134734864. Its totient is φ = 36858528720640.

The previous prime is 77067832780241. The next prime is 77067832780283. The reversal of 77067832780256 is 65208723876077.

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, 52355863925 + ... + 52355865396.

It is an arithmetic number, because the mean of its divisors is an integer number (6596838947286).

Almost surely, 2^{77067832780256} is an apocalyptic number.

It is an amenable number.

77067832780256 is an abundant number, since it is smaller than the sum of its proper divisors (81256301954608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77067832780256 is a wasteful number, since it uses less digits than its factorization.

77067832780256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104711729354 (or 104711729346 counting only the distinct ones).

The product of its (nonzero) digits is 331914240, while the sum is 68.

The spelling of 77067832780256 in words is "seventy-seven trillion, sixty-seven billion, eight hundred thirty-two million, seven hundred eighty thousand, two hundred fifty-six".