15849694851 has 16 divisors (see below), whose sum is σ = 21376190880. Its totient is φ = 10444896000.

The previous prime is 15849694837. The next prime is 15849694867.

15849694851 is nontrivially palindromic in base 10.

15849694851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15849694851 - 2¹⁵ = 15849662083 is a prime.

It is a super-3 number, since 3×15849694851³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (15849693851) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1504101 + ... + 1514601.

It is an arithmetic number, because the mean of its divisors is an integer number (1336011930).

Almost surely, 2^15849694851 is an apocalyptic number.

15849694851 is a deficient number, since it is larger than the sum of its proper divisors (5526496029).

15849694851 is a wasteful number, since it uses less digits than its factorization.

15849694851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16246.

The product of its digits is 12441600, while the sum is 60.

The spelling of 15849694851 in words is "fifteen billion, eight hundred forty-nine million, six hundred ninety-four thousand, eight hundred fifty-one".