128930161950 has 36 divisors (see below), whose sum is σ = 346392369648. Its totient is φ = 34381376400.

The previous prime is 128930161901. The next prime is 128930161951. The reversal of 128930161950 is 59161039821.

128930161950 is a `hidden beast` number, since 1 + 28 + 9 + 3 + 0 + 1 + 619 + 5 + 0 = 666.

It is a hoax number, since the sum of its digits (45) 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 (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 128930161896 and 128930161905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128930161951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 143255286 + ... + 143256185.

It is an arithmetic number, because the mean of its divisors is an integer number (9622010268).

Almost surely, 2^128930161950 is an apocalyptic number.

128930161950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128930161950 is an abundant number, since it is smaller than the sum of its proper divisors (217462207698).

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

128930161950 is a wasteful number, since it uses less digits than its factorization.

128930161950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286511489 (or 286511481 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 128930161950 in words is "one hundred twenty-eight billion, nine hundred thirty million, one hundred sixty-one thousand, nine hundred fifty".