2727651421 has 4 divisors (see below), whose sum is σ = 2975619744. Its totient is φ = 2479683100.

The previous prime is 2727651401. The next prime is 2727651427. The reversal of 2727651421 is 1241567272.

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 2727651421 - 2⁵ = 2727651389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2727651427) 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, 123984145 + ... + 123984166.

It is an arithmetic number, because the mean of its divisors is an integer number (743904936).

Almost surely, 2^2727651421 is an apocalyptic number.

It is an amenable number.

2727651421 is a deficient number, since it is larger than the sum of its proper divisors (247968323).

2727651421 is a wasteful number, since it uses less digits than its factorization.

2727651421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247968322.

The product of its digits is 47040, while the sum is 37.

The square root of 2727651421 is about 52226.9223772567. The cubic root of 2727651421 is about 1397.2140893145.

The spelling of 2727651421 in words is "two billion, seven hundred twenty-seven million, six hundred fifty-one thousand, four hundred twenty-one".