28030302793 has 2 divisors, whose sum is σ = 28030302794. Its totient is φ = 28030302792.

The previous prime is 28030302749. The next prime is 28030302799. The reversal of 28030302793 is 39720303082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15903227664 + 12127075129 = 126108^2 + 110123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28030302793 is a prime.

It is not a weakly prime, because it can be changed into another prime (28030302799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14015151396 + 14015151397.

It is an arithmetic number, because the mean of its divisors is an integer number (14015151397).

Almost surely, 2^28030302793 is an apocalyptic number.

It is an amenable number.

28030302793 is a deficient number, since it is larger than the sum of its proper divisors (1).

28030302793 is an equidigital number, since it uses as much as digits as its factorization.

28030302793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 28030302793 in words is "twenty-eight billion, thirty million, three hundred two thousand, seven hundred ninety-three".