28014019511 has 2 divisors, whose sum is σ = 28014019512. Its totient is φ = 28014019510.

The previous prime is 28014019489. The next prime is 28014019567. The reversal of 28014019511 is 11591041082.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28014019511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28014012511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14007009755 + 14007009756.

It is an arithmetic number, because the mean of its divisors is an integer number (14007009756).

Almost surely, 2^28014019511 is an apocalyptic number.

28014019511 is a deficient number, since it is larger than the sum of its proper divisors (1).

28014019511 is an equidigital number, since it uses as much as digits as its factorization.

28014019511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 32.

The spelling of 28014019511 in words is "twenty-eight billion, fourteen million, nineteen thousand, five hundred eleven".