15849694852 has 12 divisors (see below), whose sum is σ = 28022914780. Its totient is φ = 7843147776.

The previous prime is 15849694837. The next prime is 15849694867. The reversal of 15849694852 is 25849694851.

It is an interprime number because it is at equal distance from previous prime (15849694837) and next prime (15849694867).

It can be written as a sum of positive squares in 2 ways, for example, as 8555510016 + 7294184836 = 92496^2 + 85406^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20424477 + ... + 20425252.

Almost surely, 2^15849694852 is an apocalyptic number.

It is an amenable number.

15849694852 is a deficient number, since it is larger than the sum of its proper divisors (12173219928).

15849694852 is a wasteful number, since it uses less digits than its factorization.

15849694852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40849830 (or 40849828 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 61.

Subtracting 15849694852 from its reverse (25849694851), we obtain a palindrome (9999999999).

The spelling of 15849694852 in words is "fifteen billion, eight hundred forty-nine million, six hundred ninety-four thousand, eight hundred fifty-two".