11545004897 has 2 divisors, whose sum is σ = 11545004898. Its totient is φ = 11545004896.

The previous prime is 11545004873. The next prime is 11545004899. The reversal of 11545004897 is 79840054511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11447074081 + 97930816 = 106991^2 + 9896^2 .

It is a cyclic number.

It is not a de Polignac number, because 11545004897 - 2²⁶ = 11477896033 is a prime.

It is a super-4 number, since 4×11545004897⁴ (a number of 41 digits) contains 4444 as substring.

Together with 11545004899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11545004899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772502448 + 5772502449.

It is an arithmetic number, because the mean of its divisors is an integer number (5772502449).

Almost surely, 2^11545004897 is an apocalyptic number.

It is an amenable number.

11545004897 is a deficient number, since it is larger than the sum of its proper divisors (1).

11545004897 is an equidigital number, since it uses as much as digits as its factorization.

11545004897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 11545004897 in words is "eleven billion, five hundred forty-five million, four thousand, eight hundred ninety-seven".