5420645939 has 2 divisors, whose sum is σ = 5420645940. Its totient is φ = 5420645938.

The previous prime is 5420645929. The next prime is 5420645941. The reversal of 5420645939 is 9395460245.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5420645939 - 2¹² = 5420641843 is a prime.

Together with 5420645941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5420645893 and 5420645902.

It is not a weakly prime, because it can be changed into another prime (5420645929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2710322969 + 2710322970.

It is an arithmetic number, because the mean of its divisors is an integer number (2710322970).

Almost surely, 2^5420645939 is an apocalyptic number.

5420645939 is a deficient number, since it is larger than the sum of its proper divisors (1).

5420645939 is an equidigital number, since it uses as much as digits as its factorization.

5420645939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The square root of 5420645939 is about 73625.0360882764. The cubic root of 5420645939 is about 1756.6436917438.

The spelling of 5420645939 in words is "five billion, four hundred twenty million, six hundred forty-five thousand, nine hundred thirty-nine".