6115556938 has 4 divisors (see below), whose sum is σ = 9173335410. Its totient is φ = 3057778468.

The previous prime is 6115556933. The next prime is 6115556959. The reversal of 6115556938 is 8396555116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4128448009 + 1987108929 = 64253^2 + 44577^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6115556891 and 6115556900.

It is not an unprimeable number, because it can be changed into a prime (6115556933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1528889233 + ... + 1528889236.

Almost surely, 2^6115556938 is an apocalyptic number.

6115556938 is a deficient number, since it is larger than the sum of its proper divisors (3057778472).

6115556938 is a wasteful number, since it uses less digits than its factorization.

6115556938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057778471.

The product of its digits is 972000, while the sum is 49.

The square root of 6115556938 is about 78202.0264315446. The cubic root of 6115556938 is about 1828.7120978946.

The spelling of 6115556938 in words is "six billion, one hundred fifteen million, five hundred fifty-six thousand, nine hundred thirty-eight".