128953369952 has 96 divisors (see below), whose sum is σ = 279065243520. Its totient is φ = 58170286080.

The previous prime is 128953369943. The next prime is 128953369973. The reversal of 128953369952 is 259963359821.

It is a congruent number.

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, 36353843 + ... + 36357389.

It is an arithmetic number, because the mean of its divisors is an integer number (2906929620).

Almost surely, 2^128953369952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128953369952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139532621760).

128953369952 is an abundant number, since it is smaller than the sum of its proper divisors (150111873568).

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

128953369952 is a wasteful number, since it uses less digits than its factorization.

128953369952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324 (or 4316 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 62.

The spelling of 128953369952 in words is "one hundred twenty-eight billion, nine hundred fifty-three million, three hundred sixty-nine thousand, nine hundred fifty-two".