2043540460553 has 8 divisors (see below), whose sum is σ = 2050638008328. Its totient is φ = 2036443750144.

The previous prime is 2043540460541. The next prime is 2043540460561. The reversal of 2043540460553 is 3550640453402.

It can be written as a sum of positive squares in 4 ways, for example, as 156236001289 + 1887304459264 = 395267^2 + 1373792^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2043540460553 - 2¹⁰ = 2043540459529 is a prime.

It is a super-2 number, since 2×2043540460553² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2043540460553.

It is not an unprimeable number, because it can be changed into a prime (2043540460573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4895651 + ... + 5296647.

It is an arithmetic number, because the mean of its divisors is an integer number (256329751041).

Almost surely, 2^{2043540460553} is an apocalyptic number.

It is an amenable number.

2043540460553 is a deficient number, since it is larger than the sum of its proper divisors (7097547775).

2043540460553 is a wasteful number, since it uses less digits than its factorization.

2043540460553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418683.

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 2043540460553 in words is "two trillion, forty-three billion, five hundred forty million, four hundred sixty thousand, five hundred fifty-three".