6138894472528 has 20 divisors (see below), whose sum is σ = 11894486118228. Its totient is φ = 3069349667840.

The previous prime is 6138894472511. The next prime is 6138894472531. The reversal of 6138894472528 is 8252744988316.

It can be written as a sum of positive squares in 2 ways, for example, as 1779534656064 + 4359359816464 = 1333992^2 + 2087908^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5577601 + ... + 6586912.

Almost surely, 2^{6138894472528} is an apocalyptic number.

It is an amenable number.

6138894472528 is a deficient number, since it is larger than the sum of its proper divisors (5755591645700).

6138894472528 is a wasteful number, since it uses less digits than its factorization.

6138894472528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12196062 (or 12196056 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 67.

The spelling of 6138894472528 in words is "six trillion, one hundred thirty-eight billion, eight hundred ninety-four million, four hundred seventy-two thousand, five hundred twenty-eight".