5421289680 has 120 divisors (see below), whose sum is σ = 18437153280. Its totient is φ = 1427362560.

The previous prime is 5421289673. The next prime is 5421289723. The reversal of 5421289680 is 869821245.

5421289680 is a `hidden beast` number, since 542 + 1 + 28 + 9 + 6 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9225 + ... + 104535.

It is an arithmetic number, because the mean of its divisors is an integer number (153642944).

Almost surely, 2^5421289680 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 5421289680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9218576640).

5421289680 is an abundant number, since it is smaller than the sum of its proper divisors (13015863600).

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

5421289680 is a wasteful number, since it uses less digits than its factorization.

5421289680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95409 (or 95400 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 5421289680 is about 73629.4077118647. The cubic root of 5421289680 is about 1756.7132270488.

The spelling of 5421289680 in words is "five billion, four hundred twenty-one million, two hundred eighty-nine thousand, six hundred eighty".