1799678593441 has 81 divisors (see below), whose sum is σ = 2070284513241. Its totient is φ = 1563977378304.

The previous prime is 1799678593439. The next prime is 1799678593459. The reversal of 1799678593441 is 1443958769971.

The square root of 1799678593441 is 1341521.

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

It can be written as a sum of positive squares in 4 ways, for example, as 227262911841 + 1572415681600 = 476721^2 + 1253960^2 .

It is not a de Polignac number, because 1799678593441 - 2¹ = 1799678593439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a Duffinian number.

Its product of digits (411505920) is a multiple of the sum of its prime divisors (160).

It is not an unprimeable number, because it can be changed into a prime (1799678593841) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 24653131381 + ... + 24653131453.

Almost surely, 2^{1799678593441} is an apocalyptic number.

1799678593441 is the 1341521-st square number.

1799678593441 is the 670761-st centered octagonal number.

It is an amenable number.

1799678593441 is a deficient number, since it is larger than the sum of its proper divisors (270605919800).

1799678593441 is an frugal number, since it uses more digits than its factorization.

1799678593441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 160 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 73.

The spelling of 1799678593441 in words is "one trillion, seven hundred ninety-nine billion, six hundred seventy-eight million, five hundred ninety-three thousand, four hundred forty-one".