256527729012 has 12 divisors (see below), whose sum is σ = 598564701056. Its totient is φ = 85509243000.

The previous prime is 256527729001. The next prime is 256527729013. The reversal of 256527729012 is 210927725652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×256527729012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256527729013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10688655364 + ... + 10688655387.

Almost surely, 2^256527729012 is an apocalyptic number.

It is an amenable number.

256527729012 is an abundant number, since it is smaller than the sum of its proper divisors (342036972044).

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

256527729012 is a wasteful number, since it uses less digits than its factorization.

256527729012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21377310758 (or 21377310756 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 256527729012 in words is "two hundred fifty-six billion, five hundred twenty-seven million, seven hundred twenty-nine thousand, twelve".