2591148764 has 24 divisors (see below), whose sum is σ = 4695000576. Its totient is φ = 1249974000.

The previous prime is 2591148761. The next prime is 2591148779. The reversal of 2591148764 is 4678411952.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591148761) 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 7 ways as a sum of consecutive naturals, for example, 9479 + ... + 72609.

It is an arithmetic number, because the mean of its divisors is an integer number (195625024).

Almost surely, 2^2591148764 is an apocalyptic number.

It is an amenable number.

2591148764 is a deficient number, since it is larger than the sum of its proper divisors (2103851812).

2591148764 is a wasteful number, since it uses less digits than its factorization.

2591148764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63497 (or 63495 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 2591148764 is about 50903.3276318946. The cubic root of 2591148764 is about 1373.5067008384.

The spelling of 2591148764 in words is "two billion, five hundred ninety-one million, one hundred forty-eight thousand, seven hundred sixty-four".