264696842545 has 8 divisors (see below), whose sum is σ = 317788859880. Its totient is φ = 211655708160.

The previous prime is 264696842539. The next prime is 264696842563. The reversal of 264696842545 is 545248696462.

It can be written as a sum of positive squares in 4 ways, for example, as 53318504464 + 211378338081 = 230908^2 + 459759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264696842545 - 2³ = 264696842537 is a prime.

It is an unprimeable number.

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, 12709290 + ... + 12730099.

It is an arithmetic number, because the mean of its divisors is an integer number (39723607485).

Almost surely, 2^264696842545 is an apocalyptic number.

It is an amenable number.

264696842545 is a deficient number, since it is larger than the sum of its proper divisors (53092017335).

264696842545 is a wasteful number, since it uses less digits than its factorization.

264696842545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25441475.

The product of its digits is 99532800, while the sum is 61.

The spelling of 264696842545 in words is "two hundred sixty-four billion, six hundred ninety-six million, eight hundred forty-two thousand, five hundred forty-five".