12526823240 has 32 divisors (see below), whose sum is σ = 28289381760. Its totient is φ = 4992235200.

The previous prime is 12526823233. The next prime is 12526823249. The reversal of 12526823240 is 4232862521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12526823240.

It is not an unprimeable number, because it can be changed into a prime (12526823249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566966 + ... + 588645.

It is an arithmetic number, because the mean of its divisors is an integer number (884043180).

Almost surely, 2^12526823240 is an apocalyptic number.

12526823240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12526823240 is an abundant number, since it is smaller than the sum of its proper divisors (15762558520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12526823240 is a wasteful number, since it uses less digits than its factorization.

12526823240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155893 (or 1155889 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 12526823240 in words is "twelve billion, five hundred twenty-six million, eight hundred twenty-three thousand, two hundred forty".