28876417851 has 8 divisors (see below), whose sum is σ = 38627305024. Its totient is φ = 19188237960.

The previous prime is 28876417847. The next prime is 28876417859. The reversal of 28876417851 is 15871467882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28876417851 - 2² = 28876417847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28876417791 and 28876417800.

It is not an unprimeable number, because it can be changed into a prime (28876417859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15675745 + ... + 15677586.

It is an arithmetic number, because the mean of its divisors is an integer number (4828413128).

Almost surely, 2^28876417851 is an apocalyptic number.

28876417851 is a deficient number, since it is larger than the sum of its proper divisors (9750887173).

28876417851 is a wasteful number, since it uses less digits than its factorization.

28876417851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31353641.

The product of its digits is 6021120, while the sum is 57.

The spelling of 28876417851 in words is "twenty-eight billion, eight hundred seventy-six million, four hundred seventeen thousand, eight hundred fifty-one".