128588452401840 has 80 divisors (see below), whose sum is σ = 398688017595648. Its totient is φ = 34284764498688.

The previous prime is 128588452401811. The next prime is 128588452401847. The reversal of 128588452401840 is 48104254885821.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×128588452401840² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (128588452401847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41384122 + ... + 44382681.

Almost surely, 2^{128588452401840} is an apocalyptic number.

128588452401840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128588452401840 is an abundant number, since it is smaller than the sum of its proper divisors (270099565193808).

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

128588452401840 is a wasteful number, since it uses less digits than its factorization.

128588452401840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85773066 (or 85773060 counting only the distinct ones).

The product of its (nonzero) digits is 26214400, while the sum is 60.

The spelling of 128588452401840 in words is "one hundred twenty-eight trillion, five hundred eighty-eight billion, four hundred fifty-two million, four hundred one thousand, eight hundred forty".