6311591045 has 16 divisors (see below), whose sum is σ = 7829846640. Its totient is φ = 4880908800.

The previous prime is 6311590993. The next prime is 6311591047. The reversal of 6311591045 is 5401951136.

6311591045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 737176801 + 5574414244 = 27151^2 + 74662^2 .

It is not a de Polignac number, because 6311591045 - 2¹⁸ = 6311328901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6311590996 and 6311591014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6311591047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118886 + ... + 163575.

It is an arithmetic number, because the mean of its divisors is an integer number (489365415).

Almost surely, 2^6311591045 is an apocalyptic number.

It is an amenable number.

6311591045 is a deficient number, since it is larger than the sum of its proper divisors (1518255595).

6311591045 is a wasteful number, since it uses less digits than its factorization.

6311591045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282616.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 6311591045 is about 79445.5224981245. The cubic root of 6311591045 is about 1848.0467375605.

The spelling of 6311591045 in words is "six billion, three hundred eleven million, five hundred ninety-one thousand, forty-five".