605396408503 has 4 divisors (see below), whose sum is σ = 618277183200. Its totient is φ = 592515633808.

The previous prime is 605396408453. The next prime is 605396408557. The reversal of 605396408503 is 305804693506.

It is a happy number.

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 605396408503 - 2⁹ = 605396407991 is a prime.

It is a super-2 number, since 2×605396408503² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605396408203) 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 in 3 ways as a sum of consecutive naturals, for example, 6440387278 + ... + 6440387371.

It is an arithmetic number, because the mean of its divisors is an integer number (154569295800).

Almost surely, 2^605396408503 is an apocalyptic number.

605396408503 is a deficient number, since it is larger than the sum of its proper divisors (12880774697).

605396408503 is a wasteful number, since it uses less digits than its factorization.

605396408503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12880774696.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 605396408503 in words is "six hundred five billion, three hundred ninety-six million, four hundred eight thousand, five hundred three".