2018381948225 has 48 divisors (see below), whose sum is σ = 2656957533120. Its totient is φ = 1518373113600.

The previous prime is 2018381948221. The next prime is 2018381948239. The reversal of 2018381948225 is 5228491838102.

It is not a de Polignac number, because 2018381948225 - 2² = 2018381948221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2018381948221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10724435 + ... + 10911015.

It is an arithmetic number, because the mean of its divisors is an integer number (55353281940).

Almost surely, 2^{2018381948225} is an apocalyptic number.

2018381948225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2018381948225 is a deficient number, since it is larger than the sum of its proper divisors (638575584895).

2018381948225 is a wasteful number, since it uses less digits than its factorization.

2018381948225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187010 (or 187005 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 53.

The spelling of 2018381948225 in words is "two trillion, eighteen billion, three hundred eighty-one million, nine hundred forty-eight thousand, two hundred twenty-five".