427317308488 has 64 divisors (see below), whose sum is σ = 970674019200. Its totient is φ = 172162298880.

The previous prime is 427317308479. The next prime is 427317308489. The reversal of 427317308488 is 884803713724.

It is a super-2 number, since 2×427317308488² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427317308489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556498 + ... + 1079038.

It is an arithmetic number, because the mean of its divisors is an integer number (15166781550).

Almost surely, 2^427317308488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427317308488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485337009600).

427317308488 is an abundant number, since it is smaller than the sum of its proper divisors (543356710712).

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

427317308488 is a wasteful number, since it uses less digits than its factorization.

427317308488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523430 (or 523426 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 55.

The spelling of 427317308488 in words is "four hundred twenty-seven billion, three hundred seventeen million, three hundred eight thousand, four hundred eighty-eight".