28994375364523 has 2 divisors, whose sum is σ = 28994375364524. Its totient is φ = 28994375364522.

The previous prime is 28994375364473. The next prime is 28994375364637. The reversal of 28994375364523 is 32546357349982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28994375364523 - 2²⁹ = 28993838493611 is a prime.

It is not a weakly prime, because it can be changed into another prime (28994375364223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14497187682261 + 14497187682262.

It is an arithmetic number, because the mean of its divisors is an integer number (14497187682262).

Almost surely, 2^{28994375364523} is an apocalyptic number.

28994375364523 is a deficient number, since it is larger than the sum of its proper divisors (1).

28994375364523 is an equidigital number, since it uses as much as digits as its factorization.

28994375364523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1175731200, while the sum is 70.

The spelling of 28994375364523 in words is "twenty-eight trillion, nine hundred ninety-four billion, three hundred seventy-five million, three hundred sixty-four thousand, five hundred twenty-three".