18734625245203 has 16 divisors (see below), whose sum is σ = 21422238898176. Its totient is φ = 16049823495840.

The previous prime is 18734625245177. The next prime is 18734625245207. The reversal of 18734625245203 is 30254252643781.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18734625245203 - 2³⁷ = 18597186291731 is a prime.

It is a super-3 number, since 3×18734625245203³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18734625245207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104169225 + ... + 104348917.

It is an arithmetic number, because the mean of its divisors is an integer number (1338889931136).

Almost surely, 2^{18734625245203} is an apocalyptic number.

18734625245203 is a deficient number, since it is larger than the sum of its proper divisors (2687613652973).

18734625245203 is a wasteful number, since it uses less digits than its factorization.

18734625245203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187434.

The product of its (nonzero) digits is 9676800, while the sum is 52.

Adding to 18734625245203 its reverse (30254252643781), we get a palindrome (48988877888984).

The spelling of 18734625245203 in words is "eighteen trillion, seven hundred thirty-four billion, six hundred twenty-five million, two hundred forty-five thousand, two hundred three".