6184426421 has 2 divisors, whose sum is σ = 6184426422. Its totient is φ = 6184426420.

The previous prime is 6184426403. The next prime is 6184426459. The reversal of 6184426421 is 1246244816.

It is an a-pointer prime, because the next prime (6184426459) can be obtained adding 6184426421 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6080100625 + 104325796 = 77975^2 + 10214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6184426421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6184426021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3092213210 + 3092213211.

It is an arithmetic number, because the mean of its divisors is an integer number (3092213211).

Almost surely, 2^6184426421 is an apocalyptic number.

It is an amenable number.

6184426421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6184426421 is an equidigital number, since it uses as much as digits as its factorization.

6184426421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 38.

The square root of 6184426421 is about 78641.1242353516. The cubic root of 6184426421 is about 1835.5510842507.

The spelling of 6184426421 in words is "six billion, one hundred eighty-four million, four hundred twenty-six thousand, four hundred twenty-one".