128349263040 has 56 divisors (see below), whose sum is σ = 407508913200. Its totient is φ = 34226469888.

The previous prime is 128349262991. The next prime is 128349263051. The reversal of 128349263040 is 40362943821.

128349263040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×128349263040² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128349262983 and 128349263001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66847615 + ... + 66849534.

Almost surely, 2^128349263040 is an apocalyptic number.

128349263040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128349263040 is an abundant number, since it is smaller than the sum of its proper divisors (279159650160).

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

128349263040 is a wasteful number, since it uses less digits than its factorization.

128349263040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133697169 (or 133697159 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 128349263040 in words is "one hundred twenty-eight billion, three hundred forty-nine million, two hundred sixty-three thousand, forty".