264385295247 has 16 divisors (see below), whose sum is σ = 373286763360. Its totient is φ = 165872397312.

The previous prime is 264385295233. The next prime is 264385295287. The reversal of 264385295247 is 742592583462.

It is not a de Polignac number, because 264385295247 - 2⁴ = 264385295231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264385295227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274629 + ... + 777297.

It is an arithmetic number, because the mean of its divisors is an integer number (23330422710).

Almost surely, 2^264385295247 is an apocalyptic number.

264385295247 is a deficient number, since it is larger than the sum of its proper divisors (108901468113).

264385295247 is a wasteful number, since it uses less digits than its factorization.

264385295247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513002.

The product of its digits is 29030400, while the sum is 57.

The spelling of 264385295247 in words is "two hundred sixty-four billion, three hundred eighty-five million, two hundred ninety-five thousand, two hundred forty-seven".