28825771945519 has 2 divisors, whose sum is σ = 28825771945520. Its totient is φ = 28825771945518.

The previous prime is 28825771945441. The next prime is 28825771945573. The reversal of 28825771945519 is 91554917752882.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28825771945519 is a prime.

It is a super-2 number, since 2×28825771945519² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28025771945519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14412885972759 + 14412885972760.

It is an arithmetic number, because the mean of its divisors is an integer number (14412885972760).

Almost surely, 2^{28825771945519} is an apocalyptic number.

28825771945519 is a deficient number, since it is larger than the sum of its proper divisors (1).

28825771945519 is an equidigital number, since it uses as much as digits as its factorization.

28825771945519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032000, while the sum is 73.

The spelling of 28825771945519 in words is "twenty-eight trillion, eight hundred twenty-five billion, seven hundred seventy-one million, nine hundred forty-five thousand, five hundred nineteen".