1980434828600 has 96 divisors (see below), whose sum is σ = 4624732279440. Its totient is φ = 788697600000.

The previous prime is 1980434828573. The next prime is 1980434828641. The reversal of 1980434828600 is 68284340891.

It is a super-2 number, since 2×1980434828600² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152651714 + ... + 152664686.

Almost surely, 2^{1980434828600} is an apocalyptic number.

1980434828600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980434828600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2312366139720).

1980434828600 is an abundant number, since it is smaller than the sum of its proper divisors (2644297450840).

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

1980434828600 is a wasteful number, since it uses less digits than its factorization.

1980434828600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16281 (or 16272 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 1980434828600 in words is "one trillion, nine hundred eighty billion, four hundred thirty-four million, eight hundred twenty-eight thousand, six hundred".