1463440573723 has 4 divisors (see below), whose sum is σ = 1463956417440. Its totient is φ = 1462924730008.

The previous prime is 1463440573687. The next prime is 1463440573753. The reversal of 1463440573723 is 3273750443641.

It is a happy number.

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-1463440573723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1463440573753) 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, 257917603 + ... + 257923276.

It is an arithmetic number, because the mean of its divisors is an integer number (365989104360).

Almost surely, 2^{1463440573723} is an apocalyptic number.

1463440573723 is a deficient number, since it is larger than the sum of its proper divisors (515843717).

1463440573723 is an equidigital number, since it uses as much as digits as its factorization.

1463440573723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515843716.

The product of its (nonzero) digits is 5080320, while the sum is 49.

The spelling of 1463440573723 in words is "one trillion, four hundred sixty-three billion, four hundred forty million, five hundred seventy-three thousand, seven hundred twenty-three".