13247761532 has 12 divisors (see below), whose sum is σ = 23408666736. Its totient is φ = 6559571040.

The previous prime is 13247761531. The next prime is 13247761567. The reversal of 13247761532 is 23516774231.

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 13247761532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247761531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16076969 + ... + 16077792.

It is an arithmetic number, because the mean of its divisors is an integer number (1950722228).

Almost surely, 2^13247761532 is an apocalyptic number.

It is an amenable number.

13247761532 is a deficient number, since it is larger than the sum of its proper divisors (10160905204).

13247761532 is a wasteful number, since it uses less digits than its factorization.

13247761532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32154868 (or 32154866 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The spelling of 13247761532 in words is "thirteen billion, two hundred forty-seven million, seven hundred sixty-one thousand, five hundred thirty-two".