6121776431671 has 2 divisors, whose sum is σ = 6121776431672. Its totient is φ = 6121776431670.

The previous prime is 6121776431513. The next prime is 6121776431681. The reversal of 6121776431671 is 1761346771216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6121776431671 - 2¹¹ = 6121776429623 is a prime.

It is a super-2 number, since 2×6121776431671² (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 (6121776431681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060888215835 + 3060888215836.

It is an arithmetic number, because the mean of its divisors is an integer number (3060888215836).

Almost surely, 2^{6121776431671} is an apocalyptic number.

6121776431671 is a deficient number, since it is larger than the sum of its proper divisors (1).

6121776431671 is an equidigital number, since it uses as much as digits as its factorization.

6121776431671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 52.

The spelling of 6121776431671 in words is "six trillion, one hundred twenty-one billion, seven hundred seventy-six million, four hundred thirty-one thousand, six hundred seventy-one".