18234709530 has 32 divisors (see below), whose sum is σ = 44107905024. Its totient is φ = 4824300096.

The previous prime is 18234709529. The next prime is 18234709561. The reversal of 18234709530 is 3590743281.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2389197 + ... + 2396816.

It is an arithmetic number, because the mean of its divisors is an integer number (1378372032).

Almost surely, 2^18234709530 is an apocalyptic number.

18234709530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18234709530 is an abundant number, since it is smaller than the sum of its proper divisors (25873195494).

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

18234709530 is a wasteful number, since it uses less digits than its factorization.

18234709530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786150.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 18234709530 in words is "eighteen billion, two hundred thirty-four million, seven hundred nine thousand, five hundred thirty".