83429991020 has 24 divisors (see below), whose sum is σ = 175217763168. Its totient is φ = 33369180800.

The previous prime is 83429991019. The next prime is 83429991089. The reversal of 83429991020 is 2019992438.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 75785 + ... + 415455.

It is an arithmetic number, because the mean of its divisors is an integer number (7300740132).

Almost surely, 2^83429991020 is an apocalyptic number.

It is an amenable number.

83429991020 is an abundant number, since it is smaller than the sum of its proper divisors (91787772148).

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

83429991020 is a wasteful number, since it uses less digits than its factorization.

83429991020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351961 (or 351959 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 83429991020 in words is "eighty-three billion, four hundred twenty-nine million, nine hundred ninety-one thousand, twenty".