5421981600 has 432 divisors, whose sum is σ = 22009216320. Its totient is φ = 1230336000.

The previous prime is 5421981589. The next prime is 5421981601. The reversal of 5421981600 is 61891245.

5421981600 is a `hidden beast` number, since 5 + 42 + 1 + 9 + 8 + 1 + 600 = 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 (5421981601) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9021300 + ... + 9021900.

It is an arithmetic number, because the mean of its divisors is an integer number (50947260).

Almost surely, 2^5421981600 is an apocalyptic number.

5421981600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5421981600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11004608160).

5421981600 is an abundant number, since it is smaller than the sum of its proper divisors (16587234720).

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

5421981600 is a wasteful number, since it uses less digits than its factorization.

5421981600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 5421981600 is about 73634.1062280245. The cubic root of 5421981600 is about 1756.7879603921.

The spelling of 5421981600 in words is "five billion, four hundred twenty-one million, nine hundred eighty-one thousand, six hundred".