6850078838513 has 2 divisors, whose sum is σ = 6850078838514. Its totient is φ = 6850078838512.

The previous prime is 6850078838507. The next prime is 6850078838651. The reversal of 6850078838513 is 3158388700586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6387002671504 + 463076167009 = 2527252^2 + 680497^2 .

It is a cyclic number.

It is not a de Polignac number, because 6850078838513 - 2³⁸ = 6575200931569 is a prime.

It is a super-2 number, since 2×6850078838513² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6850078834513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3425039419256 + 3425039419257.

It is an arithmetic number, because the mean of its divisors is an integer number (3425039419257).

Almost surely, 2^{6850078838513} is an apocalyptic number.

It is an amenable number.

6850078838513 is a deficient number, since it is larger than the sum of its proper divisors (1).

6850078838513 is an equidigital number, since it uses as much as digits as its factorization.

6850078838513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38707200, while the sum is 62.

The spelling of 6850078838513 in words is "six trillion, eight hundred fifty billion, seventy-eight million, eight hundred thirty-eight thousand, five hundred thirteen".