627900912561 has 8 divisors (see below), whose sum is σ = 901601310400. Its totient is φ = 386400561552.

The previous prime is 627900912553. The next prime is 627900912593. The reversal of 627900912561 is 165219009726.

627900912561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 627900912561 - 2³ = 627900912553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 627900912561.

It is not an unprimeable number, because it can be changed into a prime (627900912161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8050011661 + ... + 8050011738.

It is an arithmetic number, because the mean of its divisors is an integer number (112700163800).

Almost surely, 2^627900912561 is an apocalyptic number.

It is an amenable number.

627900912561 is a deficient number, since it is larger than the sum of its proper divisors (273700397839).

627900912561 is a wasteful number, since it uses less digits than its factorization.

627900912561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16100023415.

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 627900912561 in words is "six hundred twenty-seven billion, nine hundred million, nine hundred twelve thousand, five hundred sixty-one".