609656179128 has 96 divisors (see below), whose sum is σ = 1649619088560. Its totient is φ = 187655802880.

The previous prime is 609656179127. The next prime is 609656179151. The reversal of 609656179128 is 821971656906.

609656179128 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609656179127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461613 + ... + 1196828.

Almost surely, 2^609656179128 is an apocalyptic number.

609656179128 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

609656179128 is an abundant number, since it is smaller than the sum of its proper divisors (1039962909432).

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

609656179128 is a wasteful number, since it uses less digits than its factorization.

609656179128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658537 (or 1658516 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 609656179128 in words is "six hundred nine billion, six hundred fifty-six million, one hundred seventy-nine thousand, one hundred twenty-eight".