256378277076 has 48 divisors (see below), whose sum is σ = 645750403200. Its totient is φ = 78925044352.

The previous prime is 256378277041. The next prime is 256378277101. The reversal of 256378277076 is 670772873652.

256378277076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16007631 + ... + 16023638.

It is an arithmetic number, because the mean of its divisors is an integer number (13453133400).

Almost surely, 2^256378277076 is an apocalyptic number.

It is an amenable number.

256378277076 is an abundant number, since it is smaller than the sum of its proper divisors (389372126124).

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

256378277076 is a wasteful number, since it uses less digits than its factorization.

256378277076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32031328 (or 32031326 counting only the distinct ones).

The product of its (nonzero) digits is 41489280, while the sum is 60.

The spelling of 256378277076 in words is "two hundred fifty-six billion, three hundred seventy-eight million, two hundred seventy-seven thousand, seventy-six".