427751268140 has 192 divisors, whose sum is σ = 1044320256000. Its totient is φ = 144158724864.

The previous prime is 427751268101. The next prime is 427751268143. The reversal of 427751268140 is 41862157724.

It is a super-2 number, since 2×427751268140² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427751268143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1511488439 + ... + 1511488721.

It is an arithmetic number, because the mean of its divisors is an integer number (5439168000).

Almost surely, 2^427751268140 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 427751268140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522160128000).

427751268140 is an abundant number, since it is smaller than the sum of its proper divisors (616568987860).

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

427751268140 is a wasteful number, since it uses less digits than its factorization.

427751268140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 427751268140 in words is "four hundred twenty-seven billion, seven hundred fifty-one million, two hundred sixty-eight thousand, one hundred forty".