5421421612 has 12 divisors (see below), whose sum is σ = 9689349600. Its totient is φ = 2653036016.

The previous prime is 5421421591. The next prime is 5421421613. The reversal of 5421421612 is 2161241245.

It is not an unprimeable number, because it can be changed into a prime (5421421613) 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, 14418487 + ... + 14418862.

It is an arithmetic number, because the mean of its divisors is an integer number (807445800).

Almost surely, 2^5421421612 is an apocalyptic number.

It is an amenable number.

5421421612 is a deficient number, since it is larger than the sum of its proper divisors (4267927988).

5421421612 is a wasteful number, since it uses less digits than its factorization.

5421421612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28837400 (or 28837398 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 5421421612 is about 73630.3036256133. The cubic root of 5421421612 is about 1756.7274773363.

Adding to 5421421612 its reverse (2161241245), we get a palindrome (7582662857).

The spelling of 5421421612 in words is "five billion, four hundred twenty-one million, four hundred twenty-one thousand, six hundred twelve".