1825680816580 has 48 divisors (see below), whose sum is σ = 3912251528304. Its totient is φ = 715396098560.

The previous prime is 1825680816569. The next prime is 1825680816623. The reversal of 1825680816580 is 856180865281.

It can be written as a sum of positive squares in 8 ways, for example, as 1106626756 + 1824574189824 = 33266^2 + 1350768^2 .

It is a super-2 number, since 2×1825680816580² (a number of 25 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 626611 + ... + 2010970.

It is an arithmetic number, because the mean of its divisors is an integer number (81505240173).

Almost surely, 2^{1825680816580} is an apocalyptic number.

1825680816580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1825680816580 is an abundant number, since it is smaller than the sum of its proper divisors (2086570711724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1825680816580 is a wasteful number, since it uses less digits than its factorization.

1825680816580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638296 (or 2638294 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 58.

The spelling of 1825680816580 in words is "one trillion, eight hundred twenty-five billion, six hundred eighty million, eight hundred sixteen thousand, five hundred eighty".