1798146065 has 16 divisors (see below), whose sum is σ = 2175565392. Its totient is φ = 1426704384.

The previous prime is 1798146047. The next prime is 1798146079. The reversal of 1798146065 is 5606418971.

It can be written as a sum of positive squares in 8 ways, for example, as 24641296 + 1773504769 = 4964^2 + 42113^2 .

It is a cyclic number.

It is not a de Polignac number, because 1798146065 - 2⁸ = 1798145809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329237 + ... + 334653.

It is an arithmetic number, because the mean of its divisors is an integer number (135972837).

Almost surely, 2^1798146065 is an apocalyptic number.

It is an amenable number.

1798146065 is a deficient number, since it is larger than the sum of its proper divisors (377419327).

1798146065 is a wasteful number, since it uses less digits than its factorization.

1798146065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5956.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1798146065 is about 42404.5524089101. The cubic root of 1798146065 is about 1216.0226257567.

It can be divided in two parts, 17981 and 46065, that added together give a palindrome (64046).

The spelling of 1798146065 in words is "one billion, seven hundred ninety-eight million, one hundred forty-six thousand, sixty-five".