28017125157947 has 2 divisors, whose sum is σ = 28017125157948. Its totient is φ = 28017125157946.

The previous prime is 28017125157919. The next prime is 28017125157977. The reversal of 28017125157947 is 74975152171082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28017125157947 - 2⁶ = 28017125157883 is a prime.

It is not a weakly prime, because it can be changed into another prime (28017125157977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14008562578973 + 14008562578974.

It is an arithmetic number, because the mean of its divisors is an integer number (14008562578974).

Almost surely, 2^{28017125157947} is an apocalyptic number.

28017125157947 is a deficient number, since it is larger than the sum of its proper divisors (1).

28017125157947 is an equidigital number, since it uses as much as digits as its factorization.

28017125157947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9878400, while the sum is 59.

The spelling of 28017125157947 in words is "twenty-eight trillion, seventeen billion, one hundred twenty-five million, one hundred fifty-seven thousand, nine hundred forty-seven".