128152550884 has 48 divisors (see below), whose sum is σ = 227738150640. Its totient is φ = 63093012480.

The previous prime is 128152550873. The next prime is 128152550941. The reversal of 128152550884 is 488055251821.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 18109084900 + 110043465984 = 134570^2 + 331728^2 .

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, 74463144 + ... + 74464864.

It is an arithmetic number, because the mean of its divisors is an integer number (4744544805).

Almost surely, 2^128152550884 is an apocalyptic number.

It is an amenable number.

128152550884 is a deficient number, since it is larger than the sum of its proper divisors (99585599756).

128152550884 is a wasteful number, since it uses less digits than its factorization.

128152550884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800 (or 2798 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 49.

The spelling of 128152550884 in words is "one hundred twenty-eight billion, one hundred fifty-two million, five hundred fifty thousand, eight hundred eighty-four".