1980459069486 has 16 divisors (see below), whose sum is σ = 3964752534864. Its totient is φ = 659513957184.

The previous prime is 1980459069461. The next prime is 1980459069553. The reversal of 1980459069486 is 6849609540891.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1980459069486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159759781 + ... + 159772176.

It is an arithmetic number, because the mean of its divisors is an integer number (247797033429).

Almost surely, 2^{1980459069486} is an apocalyptic number.

1980459069486 is an abundant number, since it is smaller than the sum of its proper divisors (1984293465378).

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

1980459069486 is a wasteful number, since it uses less digits than its factorization.

1980459069486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319532995.

The product of its (nonzero) digits is 134369280, while the sum is 69.

The spelling of 1980459069486 in words is "one trillion, nine hundred eighty billion, four hundred fifty-nine million, sixty-nine thousand, four hundred eighty-six".