6541122538 has 24 divisors (see below), whose sum is σ = 10444140000. Its totient is φ = 3071871168.

The previous prime is 6541122527. The next prime is 6541122569. The reversal of 6541122538 is 8352211456.

It is a super-2 number, since 2×6541122538² = 85572568114263122888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6541122497 and 6541122506.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277083 + ... + 299761.

It is an arithmetic number, because the mean of its divisors is an integer number (435172500).

Almost surely, 2^6541122538 is an apocalyptic number.

6541122538 is a deficient number, since it is larger than the sum of its proper divisors (3903017462).

6541122538 is a wasteful number, since it uses less digits than its factorization.

6541122538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23214 (or 23197 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 6541122538 is about 80877.2065417692. The cubic root of 6541122538 is about 1870.1829573058.

The spelling of 6541122538 in words is "six billion, five hundred forty-one million, one hundred twenty-two thousand, five hundred thirty-eight".