128293634970 has 64 divisors (see below), whose sum is σ = 362240864640. Its totient is φ = 32199185664.

The previous prime is 128293634969. The next prime is 128293634981. The reversal of 128293634970 is 79436392821.

128293634970 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 93 + 63 + 497 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon 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, 13970752 + ... + 13979931.

It is an arithmetic number, because the mean of its divisors is an integer number (5660013510).

Almost surely, 2^128293634970 is an apocalyptic number.

128293634970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128293634970 is an abundant number, since it is smaller than the sum of its proper divisors (233947229670).

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

128293634970 is a wasteful number, since it uses less digits than its factorization.

128293634970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27950716 (or 27950710 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 128293634970 in words is "one hundred twenty-eight billion, two hundred ninety-three million, six hundred thirty-four thousand, nine hundred seventy".