1798044700405 has 8 divisors (see below), whose sum is σ = 2158994640600. Its totient is φ = 1437541760256.

The previous prime is 1798044700393. The next prime is 1798044700447. The reversal of 1798044700405 is 5040074408971.

It can be written as a sum of positive squares in 4 ways, for example, as 134045318884 + 1663999381521 = 366122^2 + 1289961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1798044700405 - 2¹¹ = 1798044698357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111741160 + ... + 111757249.

It is an arithmetic number, because the mean of its divisors is an integer number (269874330075).

Almost surely, 2^{1798044700405} is an apocalyptic number.

It is an amenable number.

1798044700405 is a deficient number, since it is larger than the sum of its proper divisors (360949940195).

1798044700405 is a wasteful number, since it uses less digits than its factorization.

1798044700405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223500023.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 1798044700405 in words is "one trillion, seven hundred ninety-eight billion, forty-four million, seven hundred thousand, four hundred five".