13287433772 has 12 divisors (see below), whose sum is σ = 23256884280. Its totient is φ = 6642609696.

The previous prime is 13287433693. The next prime is 13287433777. The reversal of 13287433772 is 27733478231.

It is a happy number.

It is a super-2 number, since 2×13287433772² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13287433777) 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 3 ways as a sum of consecutive naturals, for example, 249497 + ... + 298032.

It is an arithmetic number, because the mean of its divisors is an integer number (1938073690).

Almost surely, 2^13287433772 is an apocalyptic number.

It is an amenable number.

13287433772 is a deficient number, since it is larger than the sum of its proper divisors (9969450508).

13287433772 is a wasteful number, since it uses less digits than its factorization.

13287433772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553600 (or 553598 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 47.

The spelling of 13287433772 in words is "thirteen billion, two hundred eighty-seven million, four hundred thirty-three thousand, seven hundred seventy-two".