3213255296628 has 144 divisors (see below), whose sum is σ = 8779883112000. Its totient is φ = 985006199808.

The previous prime is 3213255296627. The next prime is 3213255296651. The reversal of 3213255296628 is 8266925523123.

It is a happy number.

3213255296628 is a `hidden beast` number, since 3 + 2 + 1 + 3 + 2 + 5 + 5 + 2 + 9 + 6 + 628 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213255296627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138472875 + ... + 138496077.

It is an arithmetic number, because the mean of its divisors is an integer number (60971410500).

Almost surely, 2^{3213255296628} 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 3213255296628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4389941556000).

3213255296628 is an abundant number, since it is smaller than the sum of its proper divisors (5566627815372).

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

3213255296628 is a wasteful number, since it uses less digits than its factorization.

3213255296628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24318 (or 24313 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The spelling of 3213255296628 in words is "three trillion, two hundred thirteen billion, two hundred fifty-five million, two hundred ninety-six thousand, six hundred twenty-eight".