5721534144 has 504 divisors, whose sum is σ = 19301114560. Its totient is φ = 1675137024.

The previous prime is 5721534131. The next prime is 5721534209. The reversal of 5721534144 is 4414351275.

5721534144 is a `hidden beast` number, since 572 + 1 + 5 + 3 + 41 + 44 = 666.

It is a hoax number, since the sum of its digits (36) 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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 5721534099 and 5721534108.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 85395999 + ... + 85396065.

Almost surely, 2^5721534144 is an apocalyptic number.

5721534144 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 5721534144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9650557280).

5721534144 is an abundant number, since it is smaller than the sum of its proper divisors (13579580416).

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

5721534144 is a wasteful number, since it uses less digits than its factorization.

5721534144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 108 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 5721534144 is about 75640.8232636319. The cubic root of 5721534144 is about 1788.5626804358.

The spelling of 5721534144 in words is "five billion, seven hundred twenty-one million, five hundred thirty-four thousand, one hundred forty-four".