15887678851 has 12 divisors (see below), whose sum is σ = 17636234112. Its totient is φ = 14300330000.

The previous prime is 15887678813. The next prime is 15887678857.

15887678851 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15887678851 - 2¹⁷ = 15887547779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15887678857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637795 + ... + 662236.

It is an arithmetic number, because the mean of its divisors is an integer number (1469686176).

Almost surely, 2^15887678851 is an apocalyptic number.

15887678851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15887678851 is a deficient number, since it is larger than the sum of its proper divisors (1748555261).

15887678851 is a wasteful number, since it uses less digits than its factorization.

15887678851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300154 (or 1300143 counting only the distinct ones).

The product of its digits is 30105600, while the sum is 64.

The spelling of 15887678851 in words is "fifteen billion, eight hundred eighty-seven million, six hundred seventy-eight thousand, eight hundred fifty-one".