6117220877381 has 2 divisors, whose sum is σ = 6117220877382. Its totient is φ = 6117220877380.

The previous prime is 6117220877353. The next prime is 6117220877479. The reversal of 6117220877381 is 1837780227116.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3284917004356 + 2832303873025 = 1812434^2 + 1682945^2 .

It is a cyclic number.

It is not a de Polignac number, because 6117220877381 - 2³⁰ = 6116147135557 is a prime.

It is a super-2 number, since 2×6117220877381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6117220877881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3058610438690 + 3058610438691.

It is an arithmetic number, because the mean of its divisors is an integer number (3058610438691).

Almost surely, 2^{6117220877381} is an apocalyptic number.

It is an amenable number.

6117220877381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6117220877381 is an equidigital number, since it uses as much as digits as its factorization.

6117220877381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 53.

The spelling of 6117220877381 in words is "six trillion, one hundred seventeen billion, two hundred twenty million, eight hundred seventy-seven thousand, three hundred eighty-one".