264440621462445 has 48 divisors (see below), whose sum is σ = 459889918488000. Its totient is φ = 140565918931200.

The previous prime is 264440621462443. The next prime is 264440621462449. The reversal of 264440621462445 is 544264126044462.

264440621462445 is a `hidden beast` number, since 2 + 6 + 4 + 4 + 4 + 0 + 6 + 2 + 1 + 4 + 624 + 4 + 5 = 666.

264440621462445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 264440621462445 - 2¹ = 264440621462443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264440621462391 and 264440621462400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264440621462443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19403881 + ... + 30089729.

It is an arithmetic number, because the mean of its divisors is an integer number (9581039968500).

Almost surely, 2^{264440621462445} is an apocalyptic number.

It is an amenable number.

264440621462445 is a deficient number, since it is larger than the sum of its proper divisors (195449297025555).

264440621462445 is a wasteful number, since it uses less digits than its factorization.

264440621462445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687690 (or 10687687 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 54.

The spelling of 264440621462445 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred twenty-one million, four hundred sixty-two thousand, four hundred forty-five".