1823528253281 has 16 divisors (see below), whose sum is σ = 2104862077440. Its totient is φ = 1547404756800.

The previous prime is 1823528253269. The next prime is 1823528253299.

1823528253281 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1823528253281 - 2²² = 1823524058977 is a prime.

It is a super-2 number, since 2×1823528253281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1823528453281) by changing a digit.

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, 7859915 + ... + 8088591.

It is an arithmetic number, because the mean of its divisors is an integer number (131553879840).

Almost surely, 2^{1823528253281} is an apocalyptic number.

It is an amenable number.

1823528253281 is a deficient number, since it is larger than the sum of its proper divisors (281333824159).

1823528253281 is a wasteful number, since it uses less digits than its factorization.

1823528253281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240064.

The product of its digits is 1843200, while the sum is 50.

The spelling of 1823528253281 in words is "one trillion, eight hundred twenty-three billion, five hundred twenty-eight million, two hundred fifty-three thousand, two hundred eighty-one".