128662069088 has 72 divisors (see below), whose sum is σ = 304819880400. Its totient is φ = 53239458048.

The previous prime is 128662069087. The next prime is 128662069091. The reversal of 128662069088 is 880960266821.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128662069087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1369268 + ... + 1460211.

It is an arithmetic number, because the mean of its divisors is an integer number (4233609450).

Almost surely, 2^128662069088 is an apocalyptic number.

It is an amenable number.

128662069088 is an abundant number, since it is smaller than the sum of its proper divisors (176157811312).

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

128662069088 is a wasteful number, since it uses less digits than its factorization.

128662069088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829532 (or 2829517 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 128662069088 in words is "one hundred twenty-eight billion, six hundred sixty-two million, sixty-nine thousand, eighty-eight".