2753472777421 has 4 divisors (see below), whose sum is σ = 2781859094812. Its totient is φ = 2725086460032.

The previous prime is 2753472777409. The next prime is 2753472777443. The reversal of 2753472777421 is 1247772743572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564076102500 + 2189396674921 = 751050^2 + 1479661^2 .

It is a cyclic number.

It is not a de Polignac number, because 2753472777421 - 2⁵ = 2753472777389 is a prime.

It is a super-2 number, since 2×2753472777421² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2753472771421) 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, 14193158550 + ... + 14193158743.

It is an arithmetic number, because the mean of its divisors is an integer number (695464773703).

Almost surely, 2^{2753472777421} is an apocalyptic number.

It is an amenable number.

2753472777421 is a deficient number, since it is larger than the sum of its proper divisors (28386317391).

2753472777421 is an equidigital number, since it uses as much as digits as its factorization.

2753472777421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28386317390.

The product of its digits is 32269440, while the sum is 58.

The spelling of 2753472777421 in words is "two trillion, seven hundred fifty-three billion, four hundred seventy-two million, seven hundred seventy-seven thousand, four hundred twenty-one".