128797090228672 has 28 divisors (see below), whose sum is σ = 270615945096720. Its totient is φ = 60610395401216.

The previous prime is 128797090228649. The next prime is 128797090228679. The reversal of 128797090228672 is 276822090797821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128797090228679) 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, 59189838172 + ... + 59189840347.

Almost surely, 2^{128797090228672} is an apocalyptic number.

It is an amenable number.

128797090228672 is an abundant number, since it is smaller than the sum of its proper divisors (141818854868048).

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

128797090228672 is a wasteful number, since it uses less digits than its factorization.

128797090228672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118379678548 (or 118379678538 counting only the distinct ones).

The product of its (nonzero) digits is 170698752, while the sum is 70.

The spelling of 128797090228672 in words is "one hundred twenty-eight trillion, seven hundred ninety-seven billion, ninety million, two hundred twenty-eight thousand, six hundred seventy-two".