605421318780 has 72 divisors (see below), whose sum is σ = 1840686115632. Its totient is φ = 161072810496.

The previous prime is 605421318751. The next prime is 605421318781. The reversal of 605421318780 is 87813124506.

605421318780 is a `hidden beast` number, since 6 + 0 + 542 + 1 + 31 + 8 + 78 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605421318781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3805954 + ... + 3961833.

Almost surely, 2^605421318780 is an apocalyptic number.

605421318780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

605421318780 is an abundant number, since it is smaller than the sum of its proper divisors (1235264796852).

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

605421318780 is a wasteful number, since it uses less digits than its factorization.

605421318780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7768235 (or 7768230 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 605421318780 in words is "six hundred five billion, four hundred twenty-one million, three hundred eighteen thousand, seven hundred eighty".