427138421800 has 48 divisors (see below), whose sum is σ = 993142238400. Its totient is φ = 170847556800.

The previous prime is 427138421797. The next prime is 427138421819. The reversal of 427138421800 is 8124831724.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6581911 + ... + 6646489.

It is an arithmetic number, because the mean of its divisors is an integer number (20690463300).

Almost surely, 2^427138421800 is an apocalyptic number.

427138421800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427138421800 is an abundant number, since it is smaller than the sum of its proper divisors (566003816600).

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

427138421800 is a wasteful number, since it uses less digits than its factorization.

427138421800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97666 (or 97657 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

It can be divided in two parts, 4271384 and 21800, that added together give a square (4293184 = 2072²).

The spelling of 427138421800 in words is "four hundred twenty-seven billion, one hundred thirty-eight million, four hundred twenty-one thousand, eight hundred".