11545004873 has 2 divisors, whose sum is σ = 11545004874. Its totient is φ = 11545004872.

The previous prime is 11545004857. The next prime is 11545004897. The reversal of 11545004873 is 37840054511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11142280249 + 402724624 = 105557^2 + 20068^2 .

It is a cyclic number.

It is not a de Polignac number, because 11545004873 - 2⁴ = 11545004857 is a prime.

It is a super-2 number, since 2×11545004873² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11545904873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772502436 + 5772502437.

It is an arithmetic number, because the mean of its divisors is an integer number (5772502437).

Almost surely, 2^11545004873 is an apocalyptic number.

It is an amenable number.

11545004873 is a deficient number, since it is larger than the sum of its proper divisors (1).

11545004873 is an equidigital number, since it uses as much as digits as its factorization.

11545004873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 11545004873 in words is "eleven billion, five hundred forty-five million, four thousand, eight hundred seventy-three".