18010725241 has 4 divisors (see below), whose sum is σ = 18048326400. Its totient is φ = 17973124084.

The previous prime is 18010725223. The next prime is 18010725263. The reversal of 18010725241 is 14252701081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14252701081 = 31 ⋅459764551.

It is a cyclic number.

It is not a de Polignac number, because 18010725241 - 2¹¹ = 18010723193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18010725041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18799861 + ... + 18800818.

It is an arithmetic number, because the mean of its divisors is an integer number (4512081600).

Almost surely, 2^18010725241 is an apocalyptic number.

It is an amenable number.

18010725241 is a deficient number, since it is larger than the sum of its proper divisors (37601159).

18010725241 is an equidigital number, since it uses as much as digits as its factorization.

18010725241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37601158.

The product of its (nonzero) digits is 4480, while the sum is 31.

The spelling of 18010725241 in words is "eighteen billion, ten million, seven hundred twenty-five thousand, two hundred forty-one".