3497867978213 has 4 divisors (see below), whose sum is σ = 3997563403680. Its totient is φ = 2998172552748.

The previous prime is 3497867978201. The next prime is 3497867978221. The reversal of 3497867978213 is 3128797687943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3497867978213 - 2⁸ = 3497867977957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3497867974213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249847712723 + ... + 249847712736.

It is an arithmetic number, because the mean of its divisors is an integer number (999390850920).

Almost surely, 2^{3497867978213} is an apocalyptic number.

It is an amenable number.

3497867978213 is a deficient number, since it is larger than the sum of its proper divisors (499695425467).

3497867978213 is an equidigital number, since it uses as much as digits as its factorization.

3497867978213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499695425466.

The product of its digits is 768144384, while the sum is 74.

The spelling of 3497867978213 in words is "three trillion, four hundred ninety-seven billion, eight hundred sixty-seven million, nine hundred seventy-eight thousand, two hundred thirteen".