1243245445504 has 32 divisors (see below), whose sum is σ = 2607134779800. Its totient is φ = 588905736192.

The previous prime is 1243245445499. The next prime is 1243245445511. The reversal of 1243245445504 is 4055445423421.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255599017 + ... + 255603880.

Almost surely, 2^{1243245445504} is an apocalyptic number.

It is an amenable number.

1243245445504 is an abundant number, since it is smaller than the sum of its proper divisors (1363889334296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243245445504 is an equidigital number, since it uses as much as digits as its factorization.

1243245445504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511202930 (or 511202918 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 43.

The spelling of 1243245445504 in words is "one trillion, two hundred forty-three billion, two hundred forty-five million, four hundred forty-five thousand, five hundred four".