15847323412 has 24 divisors (see below), whose sum is σ = 28837809000. Its totient is φ = 7610781696.

The previous prime is 15847323361. The next prime is 15847323433. The reversal of 15847323412 is 21432374851.

15847323412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3818498436 + 12028824976 = 61794^2 + 109676^2 .

It is a super-2 number, since 2×15847323412² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331537 + ... + 376312.

It is an arithmetic number, because the mean of its divisors is an integer number (1201575375).

Almost surely, 2^15847323412 is an apocalyptic number.

It is an amenable number.

15847323412 is a deficient number, since it is larger than the sum of its proper divisors (12990485588).

15847323412 is a wasteful number, since it uses less digits than its factorization.

15847323412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708075 (or 708073 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The spelling of 15847323412 in words is "fifteen billion, eight hundred forty-seven million, three hundred twenty-three thousand, four hundred twelve".