6123977838 has 64 divisors (see below), whose sum is σ = 15491520000. Its totient is φ = 1775062080.

The previous prime is 6123977831. The next prime is 6123977857. The reversal of 6123977838 is 8387793216.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6123977831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210463 + ... + 237786.

It is an arithmetic number, because the mean of its divisors is an integer number (242055000).

Almost surely, 2^6123977838 is an apocalyptic number.

6123977838 is an abundant number, since it is smaller than the sum of its proper divisors (9367542162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6123977838 is a wasteful number, since it uses less digits than its factorization.

6123977838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448294 (or 448288 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 6123977838 is about 78255.8485865434. The cubic root of 6123977838 is about 1829.5510696691.

The spelling of 6123977838 in words is "six billion, one hundred twenty-three million, nine hundred seventy-seven thousand, eight hundred thirty-eight".