2675491421 has 4 divisors (see below), whose sum is σ = 2676019200. Its totient is φ = 2674963644.

The previous prime is 2675491417. The next prime is 2675491477. The reversal of 2675491421 is 1241945762.

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 2675491421 - 2² = 2675491417 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 (2675494421) 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, 256211 + ... + 266448.

It is an arithmetic number, because the mean of its divisors is an integer number (669004800).

Almost surely, 2^2675491421 is an apocalyptic number.

It is an amenable number.

2675491421 is a deficient number, since it is larger than the sum of its proper divisors (527779).

2675491421 is an equidigital number, since it uses as much as digits as its factorization.

2675491421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527778.

The product of its digits is 120960, while the sum is 41.

The square root of 2675491421 is about 51725.1526918964. The cubic root of 2675491421 is about 1388.2505501367.

The spelling of 2675491421 in words is "two billion, six hundred seventy-five million, four hundred ninety-one thousand, four hundred twenty-one".