128849590680 has 32 divisors (see below), whose sum is σ = 386548772400. Its totient is φ = 34359890816.

The previous prime is 128849590643. The next prime is 128849590693. The reversal of 128849590680 is 86095948821.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536873175 + ... + 536873414.

Almost surely, 2^128849590680 is an apocalyptic number.

128849590680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128849590680 is an abundant number, since it is smaller than the sum of its proper divisors (257699181720).

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

128849590680 is a wasteful number, since it uses less digits than its factorization.

128849590680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073746603 (or 1073746599 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 128849590680 in words is "one hundred twenty-eight billion, eight hundred forty-nine million, five hundred ninety thousand, six hundred eighty".