3198431789056 has 171 divisors, whose sum is σ = 7456177454859. Its totient is φ = 1368009474048.

The previous prime is 3198431789041. The next prime is 3198431789057. The reversal of 3198431789056 is 6509871348913.

The square root of 3198431789056 is 1788416.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×3198431789056² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (3198431789057) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6409682695 + ... + 6409683193.

It is an arithmetic number, because the mean of its divisors is an integer number (43603376929).

Almost surely, 2^{3198431789056} is an apocalyptic number.

3198431789056 is the 1788416-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3198431789056

3198431789056 is an abundant number, since it is smaller than the sum of its proper divisors (4257745665803).

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

3198431789056 is an frugal number, since it uses more digits than its factorization.

3198431789056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 64.

Multiplying 3198431789056 by its sum of digits (64), we get a square (204699634499584 = 14307328²).

3198431789056 divided by its sum of digits (64) gives a square (49975496704 = 223552²).

The spelling of 3198431789056 in words is "three trillion, one hundred ninety-eight billion, four hundred thirty-one million, seven hundred eighty-nine thousand, fifty-six".