264388764389 has 8 divisors (see below), whose sum is σ = 272923415040. Its totient is φ = 255854487600.

The previous prime is 264388764383. The next prime is 264388764449. The reversal of 264388764389 is 983467883462.

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

It is a cyclic number.

It is not a de Polignac number, because 264388764389 - 2¹⁶ = 264388698853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264388764383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2400059 + ... + 2507799.

It is an arithmetic number, because the mean of its divisors is an integer number (34115426880).

Almost surely, 2^264388764389 is an apocalyptic number.

It is an amenable number.

264388764389 is a deficient number, since it is larger than the sum of its proper divisors (8534650651).

264388764389 is a wasteful number, since it uses less digits than its factorization.

264388764389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186931.

The product of its digits is 334430208, while the sum is 68.

The spelling of 264388764389 in words is "two hundred sixty-four billion, three hundred eighty-eight million, seven hundred sixty-four thousand, three hundred eighty-nine".