427597299920 has 120 divisors (see below), whose sum is σ = 1176718268544. Its totient is φ = 141549295104.

The previous prime is 427597299901. The next prime is 427597299937. The reversal of 427597299920 is 29992795724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16997 + ... + 924923.

Almost surely, 2^427597299920 is an apocalyptic number.

427597299920 is a gapful number since it is divisible by the number (40) 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 427597299920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588359134272).

427597299920 is an abundant number, since it is smaller than the sum of its proper divisors (749120968624).

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

427597299920 is a wasteful number, since it uses less digits than its factorization.

427597299920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908005 (or 907970 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 65.

The spelling of 427597299920 in words is "four hundred twenty-seven billion, five hundred ninety-seven million, two hundred ninety-nine thousand, nine hundred twenty".