1256527285463 has 16 divisors (see below), whose sum is σ = 1277744057856. Its totient is φ = 1235384472960.

The previous prime is 1256527285451. The next prime is 1256527285469. The reversal of 1256527285463 is 3645827256521.

It is a cyclic number.

It is not a de Polignac number, because 1256527285463 - 2⁸ = 1256527285207 is a prime.

It is a super-2 number, since 2×1256527285463² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1256527285399 and 1256527285408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256527285469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197781695 + ... + 197788047.

It is an arithmetic number, because the mean of its divisors is an integer number (79859003616).

Almost surely, 2^{1256527285463} is an apocalyptic number.

1256527285463 is a deficient number, since it is larger than the sum of its proper divisors (21216772393).

1256527285463 is an equidigital number, since it uses as much as digits as its factorization.

1256527285463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11654.

The product of its digits is 24192000, while the sum is 56.

The spelling of 1256527285463 in words is "one trillion, two hundred fifty-six billion, five hundred twenty-seven million, two hundred eighty-five thousand, four hundred sixty-three".