627540431601 has 16 divisors (see below), whose sum is σ = 842381352000. Its totient is φ = 415530201408.

The previous prime is 627540431597. The next prime is 627540431603. The reversal of 627540431601 is 106134045726.

It is a happy number.

It is not a de Polignac number, because 627540431601 - 2² = 627540431597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 627540431601.

It is not an unprimeable number, because it can be changed into a prime (627540431603) 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 15 ways as a sum of consecutive naturals, for example, 15086490 + ... + 15128028.

It is an arithmetic number, because the mean of its divisors is an integer number (52648834500).

Almost surely, 2^627540431601 is an apocalyptic number.

It is an amenable number.

627540431601 is a deficient number, since it is larger than the sum of its proper divisors (214840920399).

627540431601 is a wasteful number, since it uses less digits than its factorization.

627540431601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75488.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 627540431601 in words is "six hundred twenty-seven billion, five hundred forty million, four hundred thirty-one thousand, six hundred one".