1398504253439 has 4 divisors (see below), whose sum is σ = 1398714214200. Its totient is φ = 1398294292680.

The previous prime is 1398504253417. The next prime is 1398504253441. The reversal of 1398504253439 is 9343524058931.

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 1398504253439 - 2²⁰ = 1398503204863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398504253459) 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, 104970389 + ... + 104983710.

It is an arithmetic number, because the mean of its divisors is an integer number (349678553550).

Almost surely, 2^{1398504253439} is an apocalyptic number.

1398504253439 is a deficient number, since it is larger than the sum of its proper divisors (209960761).

1398504253439 is an equidigital number, since it uses as much as digits as its factorization.

1398504253439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209960760.

The product of its (nonzero) digits is 13996800, while the sum is 56.

The spelling of 1398504253439 in words is "one trillion, three hundred ninety-eight billion, five hundred four million, two hundred fifty-three thousand, four hundred thirty-nine".