5961421361280 has 1024 divisors, whose sum is σ = 24519042662400. Its totient is φ = 1195643289600.

The previous prime is 5961421361279. The next prime is 5961421361297. The reversal of 5961421361280 is 821631241695.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2011953079 + ... + 2011956041.

It is an arithmetic number, because the mean of its divisors is an integer number (23944377600).

Almost surely, 2^{5961421361280} 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 5961421361280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12259521331200).

5961421361280 is an abundant number, since it is smaller than the sum of its proper divisors (18557621301120).

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

5961421361280 is a wasteful number, since it uses less digits than its factorization.

5961421361280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473 (or 3461 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 5961421361280 in words is "five trillion, nine hundred sixty-one billion, four hundred twenty-one million, three hundred sixty-one thousand, two hundred eighty".