128106787000 has 64 divisors (see below), whose sum is σ = 309439952640. Its totient is φ = 49589712000.

The previous prime is 128106786971. The next prime is 128106787099. The reversal of 128106787000 is 787601821.

It is a super-2 number, since 2×128106787000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2035239 + ... + 2097238.

It is an arithmetic number, because the mean of its divisors is an integer number (4834999260).

Almost surely, 2^128106787000 is an apocalyptic number.

128106787000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128106787000 is an abundant number, since it is smaller than the sum of its proper divisors (181333165640).

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

128106787000 is a wasteful number, since it uses less digits than its factorization.

128106787000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132529 (or 4132515 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 128106787000 in words is "one hundred twenty-eight billion, one hundred six million, seven hundred eighty-seven thousand".