604909136081 has 4 divisors (see below), whose sum is σ = 604939801200. Its totient is φ = 604878470964.

The previous prime is 604909136071. The next prime is 604909136087. The reversal of 604909136081 is 180631909406.

604909136081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 604909136081 - 2⁶ = 604909136017 is a prime.

It is a super-2 number, since 2×604909136081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (604909136087) 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, 15302951 + ... + 15342428.

It is an arithmetic number, because the mean of its divisors is an integer number (151234950300).

Almost surely, 2^604909136081 is an apocalyptic number.

It is an amenable number.

604909136081 is a deficient number, since it is larger than the sum of its proper divisors (30665119).

604909136081 is a wasteful number, since it uses less digits than its factorization.

604909136081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30665118.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 604909136081 in words is "six hundred four billion, nine hundred nine million, one hundred thirty-six thousand, eighty-one".