15243043851 has 96 divisors (see below), whose sum is σ = 26783877120. Its totient is φ = 8166292992.

The previous prime is 15243043847. The next prime is 15243043859. The reversal of 15243043851 is 15834034251.

It is not a de Polignac number, because 15243043851 - 2² = 15243043847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15243043859) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16267455 + ... + 16268391.

It is an arithmetic number, because the mean of its divisors is an integer number (278998720).

Almost surely, 2^15243043851 is an apocalyptic number.

15243043851 is a deficient number, since it is larger than the sum of its proper divisors (11540833269).

15243043851 is a wasteful number, since it uses less digits than its factorization.

15243043851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 15243043851 in words is "fifteen billion, two hundred forty-three million, forty-three thousand, eight hundred fifty-one".