1286527987213 has 32 divisors (see below), whose sum is σ = 1567545478400. Its totient is φ = 1031374923264.

The previous prime is 1286527987207. The next prime is 1286527987237. The reversal of 1286527987213 is 3127897256821.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1286527987213 is a prime.

It is a super-4 number, since 4×1286527987213⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286527982213) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3855481 + ... + 4175857.

It is an arithmetic number, because the mean of its divisors is an integer number (48985796200).

Almost surely, 2^{1286527987213} is an apocalyptic number.

It is an amenable number.

1286527987213 is a deficient number, since it is larger than the sum of its proper divisors (281017491187).

1286527987213 is a wasteful number, since it uses less digits than its factorization.

1286527987213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320789.

The product of its digits is 20321280, while the sum is 61.

The spelling of 1286527987213 in words is "one trillion, two hundred eighty-six billion, five hundred twenty-seven million, nine hundred eighty-seven thousand, two hundred thirteen".