265313748329 has 16 divisors (see below), whose sum is σ = 319419972480. Its totient is φ = 215277004800.

The previous prime is 265313748319. The next prime is 265313748331. The reversal of 265313748329 is 923847313562.

It is a cyclic number.

It is not a de Polignac number, because 265313748329 - 2¹⁶ = 265313682793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265313748319) 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, 593624 + ... + 939689.

It is an arithmetic number, because the mean of its divisors is an integer number (19963748280).

Almost surely, 2^265313748329 is an apocalyptic number.

It is an amenable number.

265313748329 is a deficient number, since it is larger than the sum of its proper divisors (54106224151).

265313748329 is a wasteful number, since it uses less digits than its factorization.

265313748329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534640.

The product of its digits is 6531840, while the sum is 53.

The spelling of 265313748329 in words is "two hundred sixty-five billion, three hundred thirteen million, seven hundred forty-eight thousand, three hundred twenty-nine".