256770534234740 has 24 divisors (see below), whose sum is σ = 539219660969472. Its totient is φ = 102707920536480.

The previous prime is 256770534234737. The next prime is 256770534234751. The reversal of 256770534234740 is 47432435077652.

It is a super-2 number, since 2×256770534234740² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256770534234740.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11070116 + ... + 25220795.

It is an arithmetic number, because the mean of its divisors is an integer number (22467485873728).

Almost surely, 2^{256770534234740} is an apocalyptic number.

256770534234740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256770534234740 is an abundant number, since it is smaller than the sum of its proper divisors (282449126734732).

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

256770534234740 is a wasteful number, since it uses less digits than its factorization.

256770534234740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36644687 (or 36644685 counting only the distinct ones).

The product of its (nonzero) digits is 118540800, while the sum is 59.

The spelling of 256770534234740 in words is "two hundred fifty-six trillion, seven hundred seventy billion, five hundred thirty-four million, two hundred thirty-four thousand, seven hundred forty".