6331772141 has 2 divisors, whose sum is σ = 6331772142. Its totient is φ = 6331772140.

The previous prime is 6331772137. The next prime is 6331772203. The reversal of 6331772141 is 1412771336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6232470916 + 99301225 = 78946^2 + 9965^2 .

It is a cyclic number.

It is not a de Polignac number, because 6331772141 - 2² = 6331772137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6331772441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3165886070 + 3165886071.

It is an arithmetic number, because the mean of its divisors is an integer number (3165886071).

Almost surely, 2^6331772141 is an apocalyptic number.

It is an amenable number.

6331772141 is a deficient number, since it is larger than the sum of its proper divisors (1).

6331772141 is an equidigital number, since it uses as much as digits as its factorization.

6331772141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 6331772141 is about 79572.4332982221. The cubic root of 6331772141 is about 1850.0143306414.

The spelling of 6331772141 in words is "six billion, three hundred thirty-one million, seven hundred seventy-two thousand, one hundred forty-one".