6863278534213 has 4 divisors (see below), whose sum is σ = 7161681948768. Its totient is φ = 6564875119660.

The previous prime is 6863278534193. The next prime is 6863278534237. The reversal of 6863278534213 is 3124358723686.

It is a happy number.

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 6863278534213 - 2¹⁷ = 6863278403141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6863278534313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149201707243 + ... + 149201707288.

It is an arithmetic number, because the mean of its divisors is an integer number (1790420487192).

Almost surely, 2^{6863278534213} is an apocalyptic number.

It is an amenable number.

6863278534213 is a deficient number, since it is larger than the sum of its proper divisors (298403414555).

6863278534213 is a wasteful number, since it uses less digits than its factorization.

6863278534213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298403414554.

The product of its digits is 34836480, while the sum is 58.

The spelling of 6863278534213 in words is "six trillion, eight hundred sixty-three billion, two hundred seventy-eight million, five hundred thirty-four thousand, two hundred thirteen".