5401543680 has 528 divisors, whose sum is σ = 20600745984. Its totient is φ = 1300561920.

The previous prime is 5401543673. The next prime is 5401543681. The reversal of 5401543680 is 863451045.

It is a happy number.

5401543680 is a `hidden beast` number, since 54 + 0 + 1 + 543 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5401543681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42531777 + ... + 42531903.

Almost surely, 2^5401543680 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 5401543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10300372992).

5401543680 is an abundant number, since it is smaller than the sum of its proper divisors (15199202304).

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

5401543680 is a wasteful number, since it uses less digits than its factorization.

5401543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 5401543680 is about 73495.1949449758. The cubic root of 5401543680 is about 1754.5778028411.

It can be divided in two parts, 5401 and 543680, that added together give a square (549081 = 741²).

The spelling of 5401543680 in words is "five billion, four hundred one million, five hundred forty-three thousand, six hundred eighty".