18427465400 has 96 divisors (see below), whose sum is σ = 45276678000. Its totient is φ = 6955499520.

The previous prime is 18427465391. The next prime is 18427465411. The reversal of 18427465400 is 456472481.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 967166 + ... + 986034.

Almost surely, 2^18427465400 is an apocalyptic number.

18427465400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18427465400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22638339000).

18427465400 is an abundant number, since it is smaller than the sum of its proper divisors (26849212600).

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

18427465400 is a wasteful number, since it uses less digits than its factorization.

18427465400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19161 (or 19152 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 18427465400 in words is "eighteen billion, four hundred twenty-seven million, four hundred sixty-five thousand, four hundred".