2611311045 has 64 divisors (see below), whose sum is σ = 4827217920. Its totient is φ = 1180770048.

The previous prime is 2611311041. The next prime is 2611311077. The reversal of 2611311045 is 5401131162.

It is a happy number.

It is not a de Polignac number, because 2611311045 - 2² = 2611311041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2611311041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5361792 + ... + 5362278.

It is an arithmetic number, because the mean of its divisors is an integer number (75425280).

Almost surely, 2^2611311045 is an apocalyptic number.

It is an amenable number.

2611311045 is a deficient number, since it is larger than the sum of its proper divisors (2215906875).

2611311045 is a wasteful number, since it uses less digits than its factorization.

2611311045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 2611311045 is about 51100.9886890655. The cubic root of 2611311045 is about 1377.0600165073.

The spelling of 2611311045 in words is "two billion, six hundred eleven million, three hundred eleven thousand, forty-five".