128700347412 has 96 divisors (see below), whose sum is σ = 371737965312. Its totient is φ = 33746697216.

The previous prime is 128700347393. The next prime is 128700347423. The reversal of 128700347412 is 214743007821.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151713 + ... + 529544.

It is an arithmetic number, because the mean of its divisors is an integer number (3872270472).

Almost surely, 2^128700347412 is an apocalyptic number.

128700347412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128700347412 is an abundant number, since it is smaller than the sum of its proper divisors (243037617900).

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

128700347412 is a wasteful number, since it uses less digits than its factorization.

128700347412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681457 (or 681455 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 128700347412 in words is "one hundred twenty-eight billion, seven hundred million, three hundred forty-seven thousand, four hundred twelve".