54861233865912 has 96 divisors (see below), whose sum is σ = 150124376263680. Its totient is φ = 18097544681280.

The previous prime is 54861233865871. The next prime is 54861233865913. The reversal of 54861233865912 is 21956833216845.

54861233865912 is a `hidden beast` number, since 5 + 4 + 8 + 6 + 1 + 2 + 3 + 38 + 6 + 591 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 54861233865912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54861233865913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8757633 + ... + 13653519.

It is an arithmetic number, because the mean of its divisors is an integer number (1563795586080).

Almost surely, 2^{54861233865912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54861233865912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75062188131840).

54861233865912 is an abundant number, since it is smaller than the sum of its proper divisors (95263142397768).

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

54861233865912 is a wasteful number, since it uses less digits than its factorization.

54861233865912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897513 (or 4897506 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

The spelling of 54861233865912 in words is "fifty-four trillion, eight hundred sixty-one billion, two hundred thirty-three million, eight hundred sixty-five thousand, nine hundred twelve".