605189742439 has 4 divisors (see below), whose sum is σ = 609197621680. Its totient is φ = 601181863200.

The previous prime is 605189742389. The next prime is 605189742449. The reversal of 605189742439 is 934247981506.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 605189742439 - 2²³ = 605181353831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605189742449) 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, 2003939394 + ... + 2003939695.

It is an arithmetic number, because the mean of its divisors is an integer number (152299405420).

It is a 1-persistent number, because it is pandigital, but 2⋅605189742439 = 1210379484878 is not.

Almost surely, 2^605189742439 is an apocalyptic number.

605189742439 is a deficient number, since it is larger than the sum of its proper divisors (4007879241).

605189742439 is a wasteful number, since it uses less digits than its factorization.

605189742439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007879240.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 605189742439 in words is "six hundred five billion, one hundred eighty-nine million, seven hundred forty-two thousand, four hundred thirty-nine".