5421237984 has 120 divisors (see below), whose sum is σ = 16881712848. Its totient is φ = 1700766720.

The previous prime is 5421237959. The next prime is 5421238003. The reversal of 5421237984 is 4897321245.

5421237984 is a `hidden beast` number, since 542 + 1 + 23 + 7 + 9 + 84 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17452 + ... + 105579.

Almost surely, 2^5421237984 is an apocalyptic number.

5421237984 is a gapful number since it is divisible by the number (54) 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 5421237984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8440856424).

5421237984 is an abundant number, since it is smaller than the sum of its proper divisors (11460474864).

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

5421237984 is a wasteful number, since it uses less digits than its factorization.

5421237984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123070 (or 123053 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 5421237984 is about 73629.0566556438. The cubic root of 5421237984 is about 1756.7076431785.

The spelling of 5421237984 in words is "five billion, four hundred twenty-one million, two hundred thirty-seven thousand, nine hundred eighty-four".