13512376040 has 32 divisors (see below), whose sum is σ = 30410068680. Its totient is φ = 5403666432.

The previous prime is 13512376019. The next prime is 13512376043. The reversal of 13512376040 is 4067321531.

It can be written as a sum of positive squares in 4 ways, for example, as 12990984484 + 521391556 = 113978^2 + 22834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13512375988 and 13512376006.

It is not an unprimeable number, because it can be changed into a prime (13512376043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 140384 + ... + 216176.

Almost surely, 2^13512376040 is an apocalyptic number.

13512376040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13512376040 is an abundant number, since it is smaller than the sum of its proper divisors (16897692640).

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

13512376040 is a wasteful number, since it uses less digits than its factorization.

13512376040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80261 (or 80257 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 13512376040 its reverse (4067321531), we get a palindrome (17579697571).

The spelling of 13512376040 in words is "thirteen billion, five hundred twelve million, three hundred seventy-six thousand, forty".