3261200000000 has 396 divisors, whose sum is σ = 8443870676736. Its totient is φ = 1257600000000.

The previous prime is 3261199999961. The next prime is 3261200000033. The reversal of 3261200000000 is 21623.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12399999869 + ... + 12400000131.

Almost surely, 2^{3261200000000} 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 3261200000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4221935338368).

3261200000000 is an abundant number, since it is smaller than the sum of its proper divisors (5182670676736).

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

3261200000000 is an frugal number, since it uses more digits than its factorization.

3261200000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 3261200000000 its reverse (21623), we get a palindrome (3261200021623).

The spelling of 3261200000000 in words is "three trillion, two hundred sixty-one billion, two hundred million", and thus it is an aban number.