1798306954561 has 16 divisors (see below), whose sum is σ = 2050681449600. Its totient is φ = 1562236086528.

The previous prime is 1798306954547. The next prime is 1798306954571. The reversal of 1798306954561 is 1654596038971.

It is not a de Polignac number, because 1798306954561 - 2¹¹ = 1798306952513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1798306954493 and 1798306954502.

It is not an unprimeable number, because it can be changed into a prime (1798306954571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3573810 + ... + 4045828.

It is an arithmetic number, because the mean of its divisors is an integer number (128167590600).

Almost surely, 2^{1798306954561} is an apocalyptic number.

It is an amenable number.

1798306954561 is a deficient number, since it is larger than the sum of its proper divisors (252374495039).

1798306954561 is a wasteful number, since it uses less digits than its factorization.

1798306954561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489288.

The product of its (nonzero) digits is 48988800, while the sum is 64.

The spelling of 1798306954561 in words is "one trillion, seven hundred ninety-eight billion, three hundred six million, nine hundred fifty-four thousand, five hundred sixty-one".