627136981944 has 384 divisors, whose sum is σ = 1887947980800. Its totient is φ = 172799827200.

The previous prime is 627136981943. The next prime is 627136981993. The reversal of 627136981944 is 449189631726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627136981943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 217226469 + ... + 217229355.

It is an arithmetic number, because the mean of its divisors is an integer number (4916531200).

Almost surely, 2^627136981944 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 627136981944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943973990400).

627136981944 is an abundant number, since it is smaller than the sum of its proper divisors (1260810998856).

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

627136981944 is a wasteful number, since it uses less digits than its factorization.

627136981944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095 (or 3080 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The spelling of 627136981944 in words is "six hundred twenty-seven billion, one hundred thirty-six million, nine hundred eighty-one thousand, nine hundred forty-four".