12536524465 has 16 divisors (see below), whose sum is σ = 15534775296. Its totient is φ = 9702158400.

The previous prime is 12536524453. The next prime is 12536524499. The reversal of 12536524465 is 56442563521.

It is not a de Polignac number, because 12536524465 - 2⁵ = 12536524433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 461244 + ... + 487666.

It is an arithmetic number, because the mean of its divisors is an integer number (970923456).

Almost surely, 2^12536524465 is an apocalyptic number.

It is an amenable number.

12536524465 is a deficient number, since it is larger than the sum of its proper divisors (2998250831).

12536524465 is a wasteful number, since it uses less digits than its factorization.

12536524465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29520.

The product of its digits is 864000, while the sum is 43.

The spelling of 12536524465 in words is "twelve billion, five hundred thirty-six million, five hundred twenty-four thousand, four hundred sixty-five".