1980506079829 has 16 divisors (see below), whose sum is σ = 2103317798400. Its totient is φ = 1858397172480.

The previous prime is 1980506079803. The next prime is 1980506079887. The reversal of 1980506079829 is 9289706050891.

It is a cyclic number.

It is not a de Polignac number, because 1980506079829 - 2⁹ = 1980506079317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980506079889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49953844 + ... + 49993474.

It is an arithmetic number, because the mean of its divisors is an integer number (131457362400).

Almost surely, 2^{1980506079829} is an apocalyptic number.

It is an amenable number.

1980506079829 is a deficient number, since it is larger than the sum of its proper divisors (122811718571).

1980506079829 is a wasteful number, since it uses less digits than its factorization.

1980506079829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48420.

The product of its (nonzero) digits is 19595520, while the sum is 64.

The spelling of 1980506079829 in words is "one trillion, nine hundred eighty billion, five hundred six million, seventy-nine thousand, eight hundred twenty-nine".