264440633244443 has 48 divisors (see below), whose sum is σ = 282864672979200. Its totient is φ = 247155431181120.

The previous prime is 264440633244439. The next prime is 264440633244479. The reversal of 264440633244443 is 344442336044462.

It is a happy number.

It is not a de Polignac number, because 264440633244443 - 2² = 264440633244439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264440633244643) 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, 11568326348 + ... + 11568349206.

It is an arithmetic number, because the mean of its divisors is an integer number (5893014020400).

Almost surely, 2^{264440633244443} is an apocalyptic number.

264440633244443 is a deficient number, since it is larger than the sum of its proper divisors (18424039734757).

264440633244443 is a wasteful number, since it uses less digits than its factorization.

264440633244443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24160 (or 24141 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 53.

The spelling of 264440633244443 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred thirty-three million, two hundred forty-four thousand, four hundred forty-three".