12581356035135 has 16 divisors (see below), whose sum is σ = 20130215188320. Its totient is φ = 6710041374720.

The previous prime is 12581356035109. The next prime is 12581356035137. The reversal of 12581356035135 is 53153065318521.

It is not a de Polignac number, because 12581356035135 - 2⁸ = 12581356034879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12581356035137) 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, 9924495 + ... + 11120175.

It is an arithmetic number, because the mean of its divisors is an integer number (1258138449270).

Almost surely, 2^{12581356035135} is an apocalyptic number.

12581356035135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12581356035135 is a deficient number, since it is larger than the sum of its proper divisors (7548859153185).

12581356035135 is a wasteful number, since it uses less digits than its factorization.

12581356035135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897178.

The product of its (nonzero) digits is 1620000, while the sum is 48.

The spelling of 12581356035135 in words is "twelve trillion, five hundred eighty-one billion, three hundred fifty-six million, thirty-five thousand, one hundred thirty-five".