5406437321 has 2 divisors, whose sum is σ = 5406437322. Its totient is φ = 5406437320.

The previous prime is 5406437273. The next prime is 5406437347. The reversal of 5406437321 is 1237346045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2750478025 + 2655959296 = 52445^2 + 51536^2 .

It is a cyclic number.

It is not a de Polignac number, because 5406437321 - 2²⁶ = 5339328457 is a prime.

It is not a weakly prime, because it can be changed into another prime (5406437221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2703218660 + 2703218661.

It is an arithmetic number, because the mean of its divisors is an integer number (2703218661).

Almost surely, 2^5406437321 is an apocalyptic number.

It is an amenable number.

5406437321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5406437321 is an equidigital number, since it uses as much as digits as its factorization.

5406437321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 5406437321 is about 73528.4796592450. The cubic root of 5406437321 is about 1755.1075083423.

The spelling of 5406437321 in words is "five billion, four hundred six million, four hundred thirty-seven thousand, three hundred twenty-one".