128753577472 has 120 divisors (see below), whose sum is σ = 279065716776. Its totient is φ = 59318378496.

The previous prime is 128753577461. The next prime is 128753577497. The reversal of 128753577472 is 274775357821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68961883 + ... + 68963749.

Almost surely, 2^128753577472 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 128753577472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139532858388).

128753577472 is an abundant number, since it is smaller than the sum of its proper divisors (150312139304).

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

128753577472 is an equidigital number, since it uses as much as digits as its factorization.

128753577472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2679 counting only the distinct ones).

The product of its digits is 23049600, while the sum is 58.

The spelling of 128753577472 in words is "one hundred twenty-eight billion, seven hundred fifty-three million, five hundred seventy-seven thousand, four hundred seventy-two".