28041642859 has 2 divisors, whose sum is σ = 28041642860. Its totient is φ = 28041642858.

The previous prime is 28041642781. The next prime is 28041642949. The reversal of 28041642859 is 95824614082.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28041642859 is a prime.

It is not a weakly prime, because it can be changed into another prime (28041642259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14020821429 + 14020821430.

It is an arithmetic number, because the mean of its divisors is an integer number (14020821430).

Almost surely, 2^28041642859 is an apocalyptic number.

28041642859 is a deficient number, since it is larger than the sum of its proper divisors (1).

28041642859 is an equidigital number, since it uses as much as digits as its factorization.

28041642859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 28041642859 in words is "twenty-eight billion, forty-one million, six hundred forty-two thousand, eight hundred fifty-nine".