6772161731 has 2 divisors, whose sum is σ = 6772161732. Its totient is φ = 6772161730.

The previous prime is 6772161727. The next prime is 6772161749. The reversal of 6772161731 is 1371612776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6772161731 - 2² = 6772161727 is a prime.

It is a super-2 number, since 2×6772161731² = 91724349021641832722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6772163731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3386080865 + 3386080866.

It is an arithmetic number, because the mean of its divisors is an integer number (3386080866).

Almost surely, 2^6772161731 is an apocalyptic number.

6772161731 is a deficient number, since it is larger than the sum of its proper divisors (1).

6772161731 is an equidigital number, since it uses as much as digits as its factorization.

6772161731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 41.

The square root of 6772161731 is about 82293.1451033438. The cubic root of 6772161731 is about 1891.9476140241.

The spelling of 6772161731 in words is "six billion, seven hundred seventy-two million, one hundred sixty-one thousand, seven hundred thirty-one".