2671367421 has 4 divisors (see below), whose sum is σ = 3561823232. Its totient is φ = 1780911612.

The previous prime is 2671367401. The next prime is 2671367431. The reversal of 2671367421 is 1247631762.

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 not a de Polignac number, because 2671367421 - 2²⁹ = 2134496509 is a prime.

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 2671367421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2671367401) 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, 445227901 + ... + 445227906.

It is an arithmetic number, because the mean of its divisors is an integer number (890455808).

Almost surely, 2^2671367421 is an apocalyptic number.

It is an amenable number.

2671367421 is a deficient number, since it is larger than the sum of its proper divisors (890455811).

2671367421 is an equidigital number, since it uses as much as digits as its factorization.

2671367421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890455810.

The product of its digits is 84672, while the sum is 39.

The square root of 2671367421 is about 51685.2727670078. The cubic root of 2671367421 is about 1387.5369006337.

The spelling of 2671367421 in words is "two billion, six hundred seventy-one million, three hundred sixty-seven thousand, four hundred twenty-one".