5634261421 has 4 divisors (see below), whose sum is σ = 5634411552. Its totient is φ = 5634111292.

The previous prime is 5634261419. The next prime is 5634261427. The reversal of 5634261421 is 1241624365.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1241624365 = 5 ⋅248324873.

It is a cyclic number.

It is not a de Polignac number, because 5634261421 - 2¹ = 5634261419 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 (5634261427) 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, 36480 + ... + 112246.

It is an arithmetic number, because the mean of its divisors is an integer number (1408602888).

Almost surely, 2^5634261421 is an apocalyptic number.

It is an amenable number.

5634261421 is a deficient number, since it is larger than the sum of its proper divisors (150131).

5634261421 is an equidigital number, since it uses as much as digits as its factorization.

5634261421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150130.

The product of its digits is 34560, while the sum is 34.

The square root of 5634261421 is about 75061.7174130728. The cubic root of 5634261421 is about 1779.4221729424.

Adding to 5634261421 its reverse (1241624365), we get a palindrome (6875885786).

The spelling of 5634261421 in words is "five billion, six hundred thirty-four million, two hundred sixty-one thousand, four hundred twenty-one".