28148112851 has 16 divisors (see below), whose sum is σ = 28923669600. Its totient is φ = 27385682688.

The previous prime is 28148112827. The next prime is 28148112947. The reversal of 28148112851 is 15821184182.

It is a cyclic number.

It is not a de Polignac number, because 28148112851 - 2¹⁸ = 28147850707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28148112799 and 28148112808.

It is not an unprimeable number, because it can be changed into a prime (28148112451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1584245 + ... + 1601913.

It is an arithmetic number, because the mean of its divisors is an integer number (1807729350).

Almost surely, 2^28148112851 is an apocalyptic number.

28148112851 is a deficient number, since it is larger than the sum of its proper divisors (775556749).

28148112851 is a wasteful number, since it uses less digits than its factorization.

28148112851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18038.

The product of its digits is 40960, while the sum is 41.

The spelling of 28148112851 in words is "twenty-eight billion, one hundred forty-eight million, one hundred twelve thousand, eight hundred fifty-one".