1055279543824 has 135 divisors (see below), whose sum is σ = 2313422519373. Its totient is φ = 465968764800.

The previous prime is 1055279543809. The next prime is 1055279543827. The reversal of 1055279543824 is 4283459725501.

It is a happy number.

The square root of 1055279543824 is 1027268.

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

It can be written as a sum of positive squares in only one way, i.e., 944278627600 + 111000916224 = 971740^2 + 333168^2 .

It is a super-2 number, since 2×1055279543824² (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 (1055279543827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1672391989 + ... + 1672392619.

Almost surely, 2^{1055279543824} is an apocalyptic number.

1055279543824 is the 1027268-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055279543824

1055279543824 is an abundant number, since it is smaller than the sum of its proper divisors (1258142975549).

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

1055279543824 is an frugal number, since it uses more digits than its factorization.

1055279543824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 1055279543824 in words is "one trillion, fifty-five billion, two hundred seventy-nine million, five hundred forty-three thousand, eight hundred twenty-four".