264653761 has 4 divisors (see below), whose sum is σ = 264686724. Its totient is φ = 264620800.

The previous prime is 264653743. The next prime is 264653783. The reversal of 264653761 is 167356462.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 163047361 + 101606400 = 12769^2 + 10080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264653761 is a prime.

It is a super-2 number, since 2×264653761² = 140083226422890242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264653791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4281 + ... + 23401.

It is an arithmetic number, because the mean of its divisors is an integer number (66171681).

Almost surely, 2^264653761 is an apocalyptic number.

It is an amenable number.

264653761 is a deficient number, since it is larger than the sum of its proper divisors (32963).

264653761 is a wasteful number, since it uses less digits than its factorization.

264653761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32962.

The product of its digits is 181440, while the sum is 40.

The square root of 264653761 is about 16268.1824737738. The cubic root of 264653761 is about 642.0359650598.

The spelling of 264653761 in words is "two hundred sixty-four million, six hundred fifty-three thousand, seven hundred sixty-one".