3261061920792 has 512 divisors, whose sum is σ = 9585141350400. Its totient is φ = 916337664000.

The previous prime is 3261061920773. The next prime is 3261061920799. The reversal of 3261061920792 is 2970291601623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261061920799) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8132323792 + ... + 8132324192.

It is an arithmetic number, because the mean of its divisors is an integer number (18720979200).

Almost surely, 2^{3261061920792} 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 3261061920792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4792570675200).

3261061920792 is an abundant number, since it is smaller than the sum of its proper divisors (6324079429608).

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

3261061920792 is a wasteful number, since it uses less digits than its factorization.

3261061920792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 3261061920792 in words is "three trillion, two hundred sixty-one billion, sixty-one million, nine hundred twenty thousand, seven hundred ninety-two".