5442136621 has 2 divisors, whose sum is σ = 5442136622. Its totient is φ = 5442136620.

The previous prime is 5442136603. The next prime is 5442136639. The reversal of 5442136621 is 1266312445.

It is a balanced prime because it is at equal distance from previous prime (5442136603) and next prime (5442136639).

It can be written as a sum of positive squares in only one way, i.e., 5214428521 + 227708100 = 72211^2 + 15090^2 .

It is a cyclic number.

It is not a de Polignac number, because 5442136621 - 2²³ = 5433748013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5442136691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721068310 + 2721068311.

It is an arithmetic number, because the mean of its divisors is an integer number (2721068311).

Almost surely, 2^5442136621 is an apocalyptic number.

It is an amenable number.

5442136621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5442136621 is an equidigital number, since it uses as much as digits as its factorization.

5442136621 is an odious number, because the sum of its binary digits is odd.

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

The square root of 5442136621 is about 73770.8385542689. The cubic root of 5442136621 is about 1758.9620926124.

The spelling of 5442136621 in words is "five billion, four hundred forty-two million, one hundred thirty-six thousand, six hundred twenty-one".