28433837513 has 2 divisors, whose sum is σ = 28433837514. Its totient is φ = 28433837512.

The previous prime is 28433837503. The next prime is 28433837521. The reversal of 28433837513 is 31573833482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25621444489 + 2812393024 = 160067^2 + 53032^2 .

It is a cyclic number.

It is not a de Polignac number, because 28433837513 - 2⁶ = 28433837449 is a prime.

It is not a weakly prime, because it can be changed into another prime (28433837503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14216918756 + 14216918757.

It is an arithmetic number, because the mean of its divisors is an integer number (14216918757).

Almost surely, 2^28433837513 is an apocalyptic number.

It is an amenable number.

28433837513 is a deficient number, since it is larger than the sum of its proper divisors (1).

28433837513 is an equidigital number, since it uses as much as digits as its factorization.

28433837513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 47.

The spelling of 28433837513 in words is "twenty-eight billion, four hundred thirty-three million, eight hundred thirty-seven thousand, five hundred thirteen".