54427621218816 has 160 divisors (see below), whose sum is σ = 149872741387776. Its totient is φ = 17534214144000.

The previous prime is 54427621218811. The next prime is 54427621218821. The reversal of 54427621218816 is 61881212672445.

It is an interprime number because it is at equal distance from previous prime (54427621218811) and next prime (54427621218821).

It is not an unprimeable number, because it can be changed into a prime (54427621218811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35484756 + ... + 36986796.

Almost surely, 2^{54427621218816} 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 54427621218816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74936370693888).

54427621218816 is an abundant number, since it is smaller than the sum of its proper divisors (95445120168960).

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

54427621218816 is a wasteful number, since it uses less digits than its factorization.

54427621218816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502854 (or 1502838 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 57.

The spelling of 54427621218816 in words is "fifty-four trillion, four hundred twenty-seven billion, six hundred twenty-one million, two hundred eighteen thousand, eight hundred sixteen".