627990164638 has 8 divisors (see below), whose sum is σ = 945893900160. Its totient is φ = 312692197920.

The previous prime is 627990164617. The next prime is 627990164663. The reversal of 627990164638 is 836461099726.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651441598 + ... + 651442561.

It is an arithmetic number, because the mean of its divisors is an integer number (118236737520).

Almost surely, 2^627990164638 is an apocalyptic number.

627990164638 is a deficient number, since it is larger than the sum of its proper divisors (317903735522).

627990164638 is a wasteful number, since it uses less digits than its factorization.

627990164638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302884402.

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 627990164638 in words is "six hundred twenty-seven billion, nine hundred ninety million, one hundred sixty-four thousand, six hundred thirty-eight".