54681266331 has 24 divisors (see below), whose sum is σ = 81503309264. Its totient is φ = 35300784960.

The previous prime is 54681266329. The next prime is 54681266363. The reversal of 54681266331 is 13366218645.

54681266331 is a `hidden beast` number, since 5 + 4 + 6 + 8 + 1 + 2 + 6 + 633 + 1 = 666.

It is not a de Polignac number, because 54681266331 - 2¹ = 54681266329 is a prime.

It is a super-2 number, since 2×54681266331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54681266131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318856 + ... + 459381.

Almost surely, 2^54681266331 is an apocalyptic number.

54681266331 is a deficient number, since it is larger than the sum of its proper divisors (26822042933).

54681266331 is a wasteful number, since it uses less digits than its factorization.

54681266331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778491 (or 778488 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 54681266331 in words is "fifty-four billion, six hundred eighty-one million, two hundred sixty-six thousand, three hundred thirty-one".