264761613 has 12 divisors (see below), whose sum is σ = 383147388. Its totient is φ = 176178240.

The previous prime is 264761591. The next prime is 264761639. The reversal of 264761613 is 316167462.

It is a happy number.

264761613 is a `hidden beast` number, since 2 + 647 + 6 + 1 + 6 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 171793449 + 92968164 = 13107^2 + 9642^2 .

It is not a de Polignac number, because 264761613 - 2¹² = 264757517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264761663) 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 11 ways as a sum of consecutive naturals, for example, 22320 + ... + 32057.

It is an arithmetic number, because the mean of its divisors is an integer number (31928949).

Almost surely, 2^264761613 is an apocalyptic number.

It is an amenable number.

264761613 is a deficient number, since it is larger than the sum of its proper divisors (118385775).

264761613 is a wasteful number, since it uses less digits than its factorization.

264761613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54924 (or 54921 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 264761613 is about 16271.4969501887. The cubic root of 264761613 is about 642.1231676228.

The spelling of 264761613 in words is "two hundred sixty-four million, seven hundred sixty-one thousand, six hundred thirteen".