6106851621 has 24 divisors (see below), whose sum is σ = 9532022136. Its totient is φ = 3745215360.

The previous prime is 6106851599. The next prime is 6106851631. The reversal of 6106851621 is 1261586016.

6106851621 is a `hidden beast` number, since 61 + 0 + 68 + 516 + 21 = 666.

6106851621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3109289121 + 2997562500 = 55761^2 + 54750^2 .

It is not a de Polignac number, because 6106851621 - 2⁵ = 6106851589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6106851631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54790 + ... + 123351.

It is an arithmetic number, because the mean of its divisors is an integer number (397167589).

Almost surely, 2^6106851621 is an apocalyptic number.

It is an amenable number.

6106851621 is a deficient number, since it is larger than the sum of its proper divisors (3425170515).

6106851621 is a wasteful number, since it uses less digits than its factorization.

6106851621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178453 (or 178450 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 6106851621 is about 78146.3474578307. The cubic root of 6106851621 is about 1827.8439797324.

The spelling of 6106851621 in words is "six billion, one hundred six million, eight hundred fifty-one thousand, six hundred twenty-one".