5721778814976 has 960 divisors, whose sum is σ = 20168375436000. Its totient is φ = 1598130487296.

The previous prime is 5721778814933. The next prime is 5721778814981. The reversal of 5721778814976 is 6794188771275.

5721778814976 is a `hidden beast` number, since 57 + 2 + 1 + 7 + 7 + 8 + 81 + 497 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

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 47 ways as a sum of consecutive naturals, for example, 50635210696 + ... + 50635210808.

Almost surely, 2^{5721778814976} is an apocalyptic number.

5721778814976 is a gapful number since it is divisible by the number (56) 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 5721778814976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10084187718000).

5721778814976 is an abundant number, since it is smaller than the sum of its proper divisors (14446596621024).

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

5721778814976 is an frugal number, since it uses more digits than its factorization.

5721778814976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 198 counting only the distinct ones).

The product of its digits is 331914240, while the sum is 72.

The spelling of 5721778814976 in words is "five trillion, seven hundred twenty-one billion, seven hundred seventy-eight million, eight hundred fourteen thousand, nine hundred seventy-six".