6331772145 has 32 divisors (see below), whose sum is σ = 10976245632. Its totient is φ = 3104381952.

The previous prime is 6331772141. The next prime is 6331772203. The reversal of 6331772145 is 5412771336.

It is not a de Polignac number, because 6331772145 - 2² = 6331772141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6331772141) 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 in 31 ways as a sum of consecutive naturals, for example, 277762 + ... + 299691.

It is an arithmetic number, because the mean of its divisors is an integer number (343007676).

Almost surely, 2^6331772145 is an apocalyptic number.

It is an amenable number.

6331772145 is a deficient number, since it is larger than the sum of its proper divisors (4644473487).

6331772145 is a wasteful number, since it uses less digits than its factorization.

6331772145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577521.

The product of its digits is 105840, while the sum is 39.

The square root of 6331772145 is about 79572.4333233564. The cubic root of 6331772145 is about 1850.0143310309.

The spelling of 6331772145 in words is "six billion, three hundred thirty-one million, seven hundred seventy-two thousand, one hundred forty-five".