28935853937 has 2 divisors, whose sum is σ = 28935853938. Its totient is φ = 28935853936.

The previous prime is 28935853931. The next prime is 28935853993. The reversal of 28935853937 is 73935853982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27897016576 + 1038837361 = 167024^2 + 32231^2 .

It is a cyclic number.

It is not a de Polignac number, because 28935853937 - 2¹⁸ = 28935591793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28935853937.

It is not a weakly prime, because it can be changed into another prime (28935853931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14467926968 + 14467926969.

It is an arithmetic number, because the mean of its divisors is an integer number (14467926969).

Almost surely, 2^28935853937 is an apocalyptic number.

It is an amenable number.

28935853937 is a deficient number, since it is larger than the sum of its proper divisors (1).

28935853937 is an equidigital number, since it uses as much as digits as its factorization.

28935853937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48988800, while the sum is 62.

The spelling of 28935853937 in words is "twenty-eight billion, nine hundred thirty-five million, eight hundred fifty-three thousand, nine hundred thirty-seven".