12526235045545 has 32 divisors (see below), whose sum is σ = 16266864932640. Its totient is φ = 9205005680640.

The previous prime is 12526235045531. The next prime is 12526235045573. The reversal of 12526235045545 is 54554053262521.

It can be written as a sum of positive squares in 16 ways, for example, as 6507274476096 + 6018960569449 = 2550936^2 + 2453357^2 .

It is not a de Polignac number, because 12526235045545 - 2²¹ = 12526232948393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16483765 + ... + 17226925.

It is an arithmetic number, because the mean of its divisors is an integer number (508339529145).

Almost surely, 2^{12526235045545} is an apocalyptic number.

It is an amenable number.

12526235045545 is a deficient number, since it is larger than the sum of its proper divisors (3740629887095).

12526235045545 is a wasteful number, since it uses less digits than its factorization.

12526235045545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744445.

The product of its (nonzero) digits is 7200000, while the sum is 49.

The spelling of 12526235045545 in words is "twelve trillion, five hundred twenty-six billion, two hundred thirty-five million, forty-five thousand, five hundred forty-five".