28876624651 has 32 divisors (see below), whose sum is σ = 34317271040. Its totient is φ = 23777258400.

The previous prime is 28876624649. The next prime is 28876624697. The reversal of 28876624651 is 15642667882.

It is not a de Polignac number, because 28876624651 - 2¹ = 28876624649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28876624592 and 28876624601.

It is not an unprimeable number, because it can be changed into a prime (28876624151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27792190 + ... + 27793228.

It is an arithmetic number, because the mean of its divisors is an integer number (1072414720).

Almost surely, 2^28876624651 is an apocalyptic number.

28876624651 is a deficient number, since it is larger than the sum of its proper divisors (5440646389).

28876624651 is a wasteful number, since it uses less digits than its factorization.

28876624651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its digits is 7741440, while the sum is 55.

The spelling of 28876624651 in words is "twenty-eight billion, eight hundred seventy-six million, six hundred twenty-four thousand, six hundred fifty-one".