128633425450068 has 96 divisors (see below), whose sum is σ = 374208478737408. Its totient is φ = 33411087360000.

The previous prime is 128633425450067. The next prime is 128633425450139. The reversal of 128633425450068 is 860054524336821.

It is a super-2 number, since 2×128633425450068² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128633425450067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236186068 + ... + 236730068.

It is an arithmetic number, because the mean of its divisors is an integer number (3898004986848).

Almost surely, 2^{128633425450068} is an apocalyptic number.

It is an amenable number.

128633425450068 is an abundant number, since it is smaller than the sum of its proper divisors (245575053287340).

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

128633425450068 is a wasteful number, since it uses less digits than its factorization.

128633425450068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799933 (or 799931 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 57.

Adding to 128633425450068 its reverse (860054524336821), we get a palindrome (988687949786889).

The spelling of 128633425450068 in words is "one hundred twenty-eight trillion, six hundred thirty-three billion, four hundred twenty-five million, four hundred fifty thousand, sixty-eight".