1798267590025 has 9 divisors (see below), whose sum is σ = 2229860125831. Its totient is φ = 1438608708040.

The previous prime is 1798267590017. The next prime is 1798267590071. The reversal of 1798267590025 is 5200957628971.

The square root of 1798267590025 is 1340995.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 647376332409 + 1150891257616 = 804597^2 + 1072796^2 .

It is not a de Polignac number, because 1798267590025 - 2³ = 1798267590017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6570876 + ... + 6839074.

Almost surely, 2^{1798267590025} is an apocalyptic number.

1798267590025 is the 1340995-th square number.

1798267590025 is the 670498-th centered octagonal number.

It is an amenable number.

1798267590025 is a deficient number, since it is larger than the sum of its proper divisors (431592535806).

1798267590025 is an frugal number, since it uses more digits than its factorization.

1798267590025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536408 (or 268204 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 61.

The spelling of 1798267590025 in words is "one trillion, seven hundred ninety-eight billion, two hundred sixty-seven million, five hundred ninety thousand, twenty-five".