18084557425 has 24 divisors (see below), whose sum is σ = 24503610240. Its totient is φ = 13130827200.

The previous prime is 18084557423. The next prime is 18084557437. The reversal of 18084557425 is 52475548081.

It is not a de Polignac number, because 18084557425 - 2¹ = 18084557423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18084557423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114936 + ... + 222214.

It is an arithmetic number, because the mean of its divisors is an integer number (1020983760).

Almost surely, 2^18084557425 is an apocalyptic number.

It is an amenable number.

18084557425 is a deficient number, since it is larger than the sum of its proper divisors (6419052815).

18084557425 is a wasteful number, since it uses less digits than its factorization.

18084557425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107913 (or 107908 counting only the distinct ones).

The product of its (nonzero) digits is 1792000, while the sum is 49.

The spelling of 18084557425 in words is "eighteen billion, eighty-four million, five hundred fifty-seven thousand, four hundred twenty-five".