54931381268 has 12 divisors (see below), whose sum is σ = 97943689620. Its totient is φ = 26947469952.

The previous prime is 54931381237. The next prime is 54931381277. The reversal of 54931381268 is 86218313945.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23695060624 + 31236320644 = 153932^2 + 176738^2 .

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, 129554933 + ... + 129555356.

It is an arithmetic number, because the mean of its divisors is an integer number (8161974135).

Almost surely, 2^54931381268 is an apocalyptic number.

It is an amenable number.

54931381268 is a deficient number, since it is larger than the sum of its proper divisors (43012308352).

54931381268 is a wasteful number, since it uses less digits than its factorization.

54931381268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259110346 (or 259110344 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The spelling of 54931381268 in words is "fifty-four billion, nine hundred thirty-one million, three hundred eighty-one thousand, two hundred sixty-eight".