256307966883948 has 96 divisors (see below), whose sum is σ = 730199183257600. Its totient is φ = 68341120981056.

The previous prime is 256307966883889. The next prime is 256307966883977. The reversal of 256307966883948 is 849388669703652.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1198355488 + ... + 1198569351.

Almost surely, 2^{256307966883948} is an apocalyptic number.

256307966883948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

256307966883948 is an abundant number, since it is smaller than the sum of its proper divisors (473891216373652).

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

256307966883948 is a wasteful number, since it uses less digits than its factorization.

256307966883948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396924939 (or 2396924937 counting only the distinct ones).

The product of its (nonzero) digits is 22574039040, while the sum is 84.

The spelling of 256307966883948 in words is "two hundred fifty-six trillion, three hundred seven billion, nine hundred sixty-six million, eight hundred eighty-three thousand, nine hundred forty-eight".