18129379300 has 36 divisors (see below), whose sum is σ = 39568194036. Its totient is φ = 7209827200.

The previous prime is 18129379243. The next prime is 18129379337. The reversal of 18129379300 is 397392181.

It can be written as a sum of positive squares in 6 ways, for example, as 59567524 + 18069811776 = 7718^2 + 134424^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506671 + ... + 541270.

It is an arithmetic number, because the mean of its divisors is an integer number (1099116501).

Almost surely, 2^18129379300 is an apocalyptic number.

18129379300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18129379300 is an abundant number, since it is smaller than the sum of its proper divisors (21438814736).

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

18129379300 is a wasteful number, since it uses less digits than its factorization.

18129379300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048128 (or 1048121 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 18129379300 in words is "eighteen billion, one hundred twenty-nine million, three hundred seventy-nine thousand, three hundred".