18275513801 has 2 divisors, whose sum is σ = 18275513802. Its totient is φ = 18275513800.

The previous prime is 18275513777. The next prime is 18275513849. The reversal of 18275513801 is 10831557281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14364262201 + 3911251600 = 119851^2 + 62540^2 .

It is a cyclic number.

It is not a de Polignac number, because 18275513801 - 2¹⁰ = 18275512777 is a prime.

It is not a weakly prime, because it can be changed into another prime (18275513891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9137756900 + 9137756901.

It is an arithmetic number, because the mean of its divisors is an integer number (9137756901).

Almost surely, 2^18275513801 is an apocalyptic number.

It is an amenable number.

18275513801 is a deficient number, since it is larger than the sum of its proper divisors (1).

18275513801 is an equidigital number, since it uses as much as digits as its factorization.

18275513801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 41.

The spelling of 18275513801 in words is "eighteen billion, two hundred seventy-five million, five hundred thirteen thousand, eight hundred one".