15687223852 has 12 divisors (see below), whose sum is σ = 27456055480. Its totient is φ = 7842636576.

The previous prime is 15687223813. The next prime is 15687223861. The reversal of 15687223852 is 25832278651.

It is a junction number, because it is equal to n+sod(n) for n = 15687223796 and 15687223805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207033 + ... + 272464.

Almost surely, 2^15687223852 is an apocalyptic number.

It is an amenable number.

15687223852 is a deficient number, since it is larger than the sum of its proper divisors (11768831628).

15687223852 is a wasteful number, since it uses less digits than its factorization.

15687223852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487680 (or 487678 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The spelling of 15687223852 in words is "fifteen billion, six hundred eighty-seven million, two hundred twenty-three thousand, eight hundred fifty-two".