2753430243521 has 12 divisors (see below), whose sum is σ = 2924984105868. Its totient is φ = 2591410655232.

The previous prime is 2753430243481. The next prime is 2753430243611. The reversal of 2753430243521 is 1253420343572.

It can be written as a sum of positive squares in 6 ways, for example, as 133447743025 + 2619982500496 = 365305^2 + 1618636^2 .

It is not a de Polignac number, because 2753430243521 - 2⁶ = 2753430243457 is a prime.

It is a super-2 number, since 2×2753430243521² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2753430240521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27791945 + ... + 27890841.

It is an arithmetic number, because the mean of its divisors is an integer number (243748675489).

Almost surely, 2^{2753430243521} is an apocalyptic number.

It is an amenable number.

2753430243521 is a deficient number, since it is larger than the sum of its proper divisors (171553862347).

2753430243521 is an equidigital number, since it uses as much as digits as its factorization.

2753430243521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195268 (or 195251 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 41.

The spelling of 2753430243521 in words is "two trillion, seven hundred fifty-three billion, four hundred thirty million, two hundred forty-three thousand, five hundred twenty-one".