28107510839 has 2 divisors, whose sum is σ = 28107510840. Its totient is φ = 28107510838.

The previous prime is 28107510811. The next prime is 28107510859. The reversal of 28107510839 is 93801570182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28107510839 - 2¹² = 28107506743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28107510839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28107510859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14053755419 + 14053755420.

It is an arithmetic number, because the mean of its divisors is an integer number (14053755420).

Almost surely, 2^28107510839 is an apocalyptic number.

28107510839 is a deficient number, since it is larger than the sum of its proper divisors (1).

28107510839 is an equidigital number, since it uses as much as digits as its factorization.

28107510839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 28107510839 in words is "twenty-eight billion, one hundred seven million, five hundred ten thousand, eight hundred thirty-nine".