627665465377242 has 40 divisors (see below), whose sum is σ = 1406732736749076. Its totient is φ = 209177616630528.

The previous prime is 627665465377231. The next prime is 627665465377253. The reversal of 627665465377242 is 242773564566726.

627665465377242 is a `hidden beast` number, since 6 + 2 + 7 + 6 + 6 + 5 + 4 + 6 + 5 + 377 + 242 = 666.

It is an interprime number because it is at equal distance from previous prime (627665465377231) and next prime (627665465377253).

It can be written as a sum of positive squares in 2 ways, for example, as 620988507568881 + 6676957808361 = 24919641^2 + 2583981^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 408537943 + ... + 410071434.

Almost surely, 2^{627665465377242} is an apocalyptic number.

627665465377242 is an abundant number, since it is smaller than the sum of its proper divisors (779067271371834).

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

627665465377242 is a wasteful number, since it uses less digits than its factorization.

627665465377242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818614124 (or 818614115 counting only the distinct ones).

The product of its digits is 4267468800, while the sum is 72.

The spelling of 627665465377242 in words is "six hundred twenty-seven trillion, six hundred sixty-five billion, four hundred sixty-five million, three hundred seventy-seven thousand, two hundred forty-two".