1398797538045 has 16 divisors (see below), whose sum is σ = 2355869538240. Its totient is φ = 706760861184.

The previous prime is 1398797538013. The next prime is 1398797538059. The reversal of 1398797538045 is 5408357978931.

It is not a de Polignac number, because 1398797538045 - 2⁵ = 1398797538013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2454030484 + ... + 2454031053.

It is an arithmetic number, because the mean of its divisors is an integer number (147241846140).

Almost surely, 2^{1398797538045} is an apocalyptic number.

1398797538045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1398797538045 is a deficient number, since it is larger than the sum of its proper divisors (957072000195).

1398797538045 is a wasteful number, since it uses less digits than its factorization.

1398797538045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908061564.

The product of its (nonzero) digits is 228614400, while the sum is 69.

The spelling of 1398797538045 in words is "one trillion, three hundred ninety-eight billion, seven hundred ninety-seven million, five hundred thirty-eight thousand, forty-five".