627378680660445 has 48 divisors (see below), whose sum is σ = 1243032400127232. Its totient is φ = 286749734376960.

The previous prime is 627378680660401. The next prime is 627378680660453. The reversal of 627378680660445 is 544066086873726.

It is a happy number.

627378680660445 is a `hidden beast` number, since 6 + 2 + 7 + 3 + 7 + 8 + 6 + 8 + 0 + 6 + 604 + 4 + 5 = 666.

It is not a de Polignac number, because 627378680660445 - 2¹⁷ = 627378680529373 is a prime.

It is a super-2 number, since 2×627378680660445² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 178633857 + ... + 182112086.

It is an arithmetic number, because the mean of its divisors is an integer number (25896508335984).

Almost surely, 2^{627378680660445} is an apocalyptic number.

It is an amenable number.

627378680660445 is a deficient number, since it is larger than the sum of its proper divisors (615653719466787).

627378680660445 is a wasteful number, since it uses less digits than its factorization.

627378680660445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360751482 (or 360751479 counting only the distinct ones).

The product of its (nonzero) digits is 1950842880, while the sum is 72.

The spelling of 627378680660445 in words is "six hundred twenty-seven trillion, three hundred seventy-eight billion, six hundred eighty million, six hundred sixty thousand, four hundred forty-five".