12526015040 has 168 divisors, whose sum is σ = 37852209792. Its totient is φ = 3904158720.

The previous prime is 12526014997. The next prime is 12526015063. The reversal of 12526015040 is 4051062521.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136169 + ... + 208791.

Almost surely, 2^12526015040 is an apocalyptic number.

12526015040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12526015040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18926104896).

12526015040 is an abundant number, since it is smaller than the sum of its proper divisors (25326194752).

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

12526015040 is a wasteful number, since it uses less digits than its factorization.

12526015040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72665 (or 72648 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12526015040 its reverse (4051062521), we get a palindrome (16577077561).

The spelling of 12526015040 in words is "twelve billion, five hundred twenty-six million, fifteen thousand, forty".