264451428247 has 4 divisors (see below), whose sum is σ = 265131252360. Its totient is φ = 263771604136.

The previous prime is 264451428233. The next prime is 264451428257. The reversal of 264451428247 is 742824154462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264451428247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264451428247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264451428257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339911473 + ... + 339912250.

It is an arithmetic number, because the mean of its divisors is an integer number (66282813090).

Almost surely, 2^264451428247 is an apocalyptic number.

264451428247 is a deficient number, since it is larger than the sum of its proper divisors (679824113).

264451428247 is an equidigital number, since it uses as much as digits as its factorization.

264451428247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679824112.

The product of its digits is 3440640, while the sum is 49.

The spelling of 264451428247 in words is "two hundred sixty-four billion, four hundred fifty-one million, four hundred twenty-eight thousand, two hundred forty-seven".