18630241098 has 96 divisors (see below), whose sum is σ = 43732224000. Its totient is φ = 5275470816.

The previous prime is 18630241093. The next prime is 18630241153. The reversal of 18630241098 is 89014203681.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (18630241093) 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, 21003211 + ... + 21004097.

It is an arithmetic number, because the mean of its divisors is an integer number (455544000).

Almost surely, 2^18630241098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18630241098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21866112000).

18630241098 is an abundant number, since it is smaller than the sum of its proper divisors (25101982902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18630241098 is a wasteful number, since it uses less digits than its factorization.

18630241098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 18630241098 in words is "eighteen billion, six hundred thirty million, two hundred forty-one thousand, ninety-eight".