2634511421 has 4 divisors (see below), whose sum is σ = 2635458144. Its totient is φ = 2633564700.

The previous prime is 2634511387. The next prime is 2634511423. The reversal of 2634511421 is 1241154362.

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 2634511421 - 2³⁰ = 1560769597 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 (2634511423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469175 + ... + 474756.

It is an arithmetic number, because the mean of its divisors is an integer number (658864536).

Almost surely, 2^2634511421 is an apocalyptic number.

It is an amenable number.

2634511421 is a deficient number, since it is larger than the sum of its proper divisors (946723).

2634511421 is an equidigital number, since it uses as much as digits as its factorization.

2634511421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946722.

The product of its digits is 5760, while the sum is 29.

The square root of 2634511421 is about 51327.4918635228. The cubic root of 2634511421 is about 1381.1261935099.

Adding to 2634511421 its reverse (1241154362), we get a palindrome (3875665783).

The spelling of 2634511421 in words is "two billion, six hundred thirty-four million, five hundred eleven thousand, four hundred twenty-one".