3212709394356 has 1536 divisors, whose sum is σ = 11854080000000. Its totient is φ = 742539571200.

The previous prime is 3212709394351. The next prime is 3212709394379. The reversal of 3212709394356 is 6534939072123.

3212709394356 is a `hidden beast` number, since 3 + 212 + 7 + 0 + 9 + 394 + 35 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212709394351) by changing a digit.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 9205470870 + ... + 9205471218.

It is an arithmetic number, because the mean of its divisors is an integer number (7717500000).

Almost surely, 2^{3212709394356} is an apocalyptic number.

3212709394356 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3212709394356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5927040000000).

3212709394356 is an abundant number, since it is smaller than the sum of its proper divisors (8641370605644).

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

3212709394356 is a wasteful number, since it uses less digits than its factorization.

3212709394356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 54.

The spelling of 3212709394356 in words is "three trillion, two hundred twelve billion, seven hundred nine million, three hundred ninety-four thousand, three hundred fifty-six".