5621789374464 has 192 divisors, whose sum is σ = 15700898304000. Its totient is φ = 1786404372480.

The previous prime is 5621789374429. The next prime is 5621789374469. The reversal of 5621789374464 is 4644739871265.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5621789374395 and 5621789374404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621789374469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13876209 + ... + 14275599.

It is an arithmetic number, because the mean of its divisors is an integer number (81775512000).

Almost surely, 2^{5621789374464} 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 5621789374464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7850449152000).

5621789374464 is an abundant number, since it is smaller than the sum of its proper divisors (10079108929536).

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

5621789374464 is a wasteful number, since it uses less digits than its factorization.

5621789374464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399524 (or 399504 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 66.

The spelling of 5621789374464 in words is "five trillion, six hundred twenty-one billion, seven hundred eighty-nine million, three hundred seventy-four thousand, four hundred sixty-four".