18630744303 has 16 divisors (see below), whose sum is σ = 25988751360. Its totient is φ = 11849438304.

The previous prime is 18630744299. The next prime is 18630744331. The reversal of 18630744303 is 30344703681.

It is not a de Polignac number, because 18630744303 - 2² = 18630744299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18630744373) 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, 326068 + ... + 378921.

It is an arithmetic number, because the mean of its divisors is an integer number (1624296960).

Almost surely, 2^18630744303 is an apocalyptic number.

18630744303 is a deficient number, since it is larger than the sum of its proper divisors (7358007057).

18630744303 is a wasteful number, since it uses less digits than its factorization.

18630744303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705398.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 18630744303 in words is "eighteen billion, six hundred thirty million, seven hundred forty-four thousand, three hundred three".