128206573768 has 64 divisors (see below), whose sum is σ = 305405291520. Its totient is φ = 49082976000.

The previous prime is 128206573741. The next prime is 128206573813. The reversal of 128206573768 is 867375602821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2817883 + ... + 2863018.

It is an arithmetic number, because the mean of its divisors is an integer number (4771957680).

Almost surely, 2^128206573768 is an apocalyptic number.

It is an amenable number.

128206573768 is an abundant number, since it is smaller than the sum of its proper divisors (177198717752).

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

128206573768 is a wasteful number, since it uses less digits than its factorization.

128206573768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680958 (or 5680954 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 128206573768 in words is "one hundred twenty-eight billion, two hundred six million, five hundred seventy-three thousand, seven hundred sixty-eight".