6181908148 has 12 divisors (see below), whose sum is σ = 11650519300. Its totient is φ = 2853188352.

The previous prime is 6181908133. The next prime is 6181908151. The reversal of 6181908148 is 8418091816.

It can be written as a sum of positive squares in 2 ways, for example, as 3361448484 + 2820459664 = 57978^2 + 53108^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6181908098 and 6181908107.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 59441373 + ... + 59441476.

Almost surely, 2^6181908148 is an apocalyptic number.

It is an amenable number.

6181908148 is a deficient number, since it is larger than the sum of its proper divisors (5468611152).

6181908148 is a wasteful number, since it uses less digits than its factorization.

6181908148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118882866 (or 118882864 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 46.

The square root of 6181908148 is about 78625.1114339433. Note that the first 3 decimals coincide. The cubic root of 6181908148 is about 1835.3019074759.

The spelling of 6181908148 in words is "six billion, one hundred eighty-one million, nine hundred eight thousand, one hundred forty-eight".