3197981215950 has 24 divisors (see below), whose sum is σ = 7930993415928. Its totient is φ = 852794990880.

The previous prime is 3197981215943. The next prime is 3197981215991. The reversal of 3197981215950 is 595121897913.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10659937237 + ... + 10659937536.

It is an arithmetic number, because the mean of its divisors is an integer number (330458058997).

Almost surely, 2^{3197981215950} is an apocalyptic number.

3197981215950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3197981215950 is an abundant number, since it is smaller than the sum of its proper divisors (4733012199978).

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

3197981215950 is a wasteful number, since it uses less digits than its factorization.

3197981215950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21319874788 (or 21319874783 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 60.

The spelling of 3197981215950 in words is "three trillion, one hundred ninety-seven billion, nine hundred eighty-one million, two hundred fifteen thousand, nine hundred fifty".