605138980128 has 48 divisors (see below), whose sum is σ = 1589711126976. Its totient is φ = 201557907200.

The previous prime is 605138980099. The next prime is 605138980129. The reversal of 605138980128 is 821089831506.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (605138980129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2297676 + ... + 2547467.

It is an arithmetic number, because the mean of its divisors is an integer number (33118981812).

Almost surely, 2^605138980128 is an apocalyptic number.

It is an amenable number.

605138980128 is an abundant number, since it is smaller than the sum of its proper divisors (984572146848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

605138980128 is a wasteful number, since it uses less digits than its factorization.

605138980128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4846457 (or 4846449 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 605138980128 in words is "six hundred five billion, one hundred thirty-eight million, nine hundred eighty thousand, one hundred twenty-eight".