1053644744881 has 4 divisors (see below), whose sum is σ = 1057367871472. Its totient is φ = 1049921618292.

The previous prime is 1053644744879. The next prime is 1053644744941. The reversal of 1053644744881 is 1884474463501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1053644744881 - 2¹ = 1053644744879 is a prime.

It is a super-2 number, since 2×1053644744881² (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 (1053644744851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1861562871 + ... + 1861563436.

It is an arithmetic number, because the mean of its divisors is an integer number (264341967868).

Almost surely, 2^{1053644744881} is an apocalyptic number.

It is an amenable number.

1053644744881 is a deficient number, since it is larger than the sum of its proper divisors (3723126591).

1053644744881 is an equidigital number, since it uses as much as digits as its factorization.

1053644744881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723126590.

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 1053644744881 in words is "one trillion, fifty-three billion, six hundred forty-four million, seven hundred forty-four thousand, eight hundred eighty-one".