28904190851 has 2 divisors, whose sum is σ = 28904190852. Its totient is φ = 28904190850.

The previous prime is 28904190817. The next prime is 28904190869. The reversal of 28904190851 is 15809140982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28904190851 - 2³⁰ = 27830449027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28904190796 and 28904190805.

It is not a weakly prime, because it can be changed into another prime (28904199851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14452095425 + 14452095426.

It is an arithmetic number, because the mean of its divisors is an integer number (14452095426).

Almost surely, 2^28904190851 is an apocalyptic number.

28904190851 is a deficient number, since it is larger than the sum of its proper divisors (1).

28904190851 is an equidigital number, since it uses as much as digits as its factorization.

28904190851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 47.

The spelling of 28904190851 in words is "twenty-eight billion, nine hundred four million, one hundred ninety thousand, eight hundred fifty-one".