128270953542 has 16 divisors (see below), whose sum is σ = 270044112960. Its totient is φ = 40506616872.

The previous prime is 128270953529. The next prime is 128270953583. The reversal of 128270953542 is 245359072821.

It is a junction number, because it is equal to n+sod(n) for n = 128270953491 and 128270953500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562591788 + ... + 562592015.

It is an arithmetic number, because the mean of its divisors is an integer number (16877757060).

Almost surely, 2^128270953542 is an apocalyptic number.

128270953542 is an abundant number, since it is smaller than the sum of its proper divisors (141773159418).

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

128270953542 is a wasteful number, since it uses less digits than its factorization.

128270953542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125183827.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 128270953542 in words is "one hundred twenty-eight billion, two hundred seventy million, nine hundred fifty-three thousand, five hundred forty-two".