3198961755968 has 56 divisors (see below), whose sum is σ = 6965054477280. Its totient is φ = 1445668421120.

The previous prime is 3198961755953. The next prime is 3198961755989. The reversal of 3198961755968 is 8695571698913.

It is a super-2 number, since 2×3198961755968² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13011098 + ... + 13254681.

Almost surely, 2^{3198961755968} is an apocalyptic number.

It is an amenable number.

3198961755968 is an abundant number, since it is smaller than the sum of its proper divisors (3766092721312).

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

3198961755968 is a wasteful number, since it uses less digits than its factorization.

3198961755968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26265975 (or 26265965 counting only the distinct ones).

The product of its digits is 881798400, while the sum is 77.

The spelling of 3198961755968 in words is "three trillion, one hundred ninety-eight billion, nine hundred sixty-one million, seven hundred fifty-five thousand, nine hundred sixty-eight".