440243141350523 has 4 divisors (see below), whose sum is σ = 503135018686320. Its totient is φ = 377351264014728.

The previous prime is 440243141350517. The next prime is 440243141350549. The reversal of 440243141350523 is 325053141342044.

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

It is a cyclic number.

It is not a de Polignac number, because 440243141350523 - 2³² = 440238846383227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440243141356523) 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, 31445938667888 + ... + 31445938667901.

It is an arithmetic number, because the mean of its divisors is an integer number (125783754671580).

Almost surely, 2^{440243141350523} is an apocalyptic number.

440243141350523 is a deficient number, since it is larger than the sum of its proper divisors (62891877335797).

440243141350523 is an equidigital number, since it uses as much as digits as its factorization.

440243141350523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62891877335796.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 440243141350523 its reverse (325053141342044), we get a palindrome (765296282692567).

The spelling of 440243141350523 in words is "four hundred forty trillion, two hundred forty-three billion, one hundred forty-one million, three hundred fifty thousand, five hundred twenty-three".