264536493739 has 32 divisors (see below), whose sum is σ = 313334009856. Its totient is φ = 218638103040.

The previous prime is 264536493673. The next prime is 264536493743. The reversal of 264536493739 is 937394635462.

It is not a de Polignac number, because 264536493739 - 2¹³ = 264536485547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264536493239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41505757 + ... + 41512129.

It is an arithmetic number, because the mean of its divisors is an integer number (9791687808).

Almost surely, 2^264536493739 is an apocalyptic number.

264536493739 is a deficient number, since it is larger than the sum of its proper divisors (48797516117).

264536493739 is a wasteful number, since it uses less digits than its factorization.

264536493739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275.

The product of its digits is 88179840, while the sum is 61.

The spelling of 264536493739 in words is "two hundred sixty-four billion, five hundred thirty-six million, four hundred ninety-three thousand, seven hundred thirty-nine".