3199957279897 has 8 divisors (see below), whose sum is σ = 3657107001600. Its totient is φ = 2742810800064.

The previous prime is 3199957279877. The next prime is 3199957279927. The reversal of 3199957279897 is 7989727599913.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3199957279897 - 2²³ = 3199948891289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3199957279807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916304 + ... + 3173662.

It is an arithmetic number, because the mean of its divisors is an integer number (457138375200).

Almost surely, 2^{3199957279897} is an apocalyptic number.

It is an amenable number.

3199957279897 is a deficient number, since it is larger than the sum of its proper divisors (457149721703).

3199957279897 is a wasteful number, since it uses less digits than its factorization.

3199957279897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620935.

The product of its digits is 4860913680, while the sum is 85.

The spelling of 3199957279897 in words is "three trillion, one hundred ninety-nine billion, nine hundred fifty-seven million, two hundred seventy-nine thousand, eight hundred ninety-seven".