1851974555982 has 16 divisors (see below), whose sum is σ = 3704013505152. Its totient is φ = 617314119800.

The previous prime is 1851974555953. The next prime is 1851974555993. The reversal of 1851974555982 is 2895554791581.

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, 2305068 + ... + 3002879.

It is an arithmetic number, because the mean of its divisors is an integer number (231500844072).

Almost surely, 2^{1851974555982} is an apocalyptic number.

1851974555982 is an abundant number, since it is smaller than the sum of its proper divisors (1852038949170).

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

1851974555982 is a wasteful number, since it uses less digits than its factorization.

1851974555982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5366103.

The product of its digits is 181440000, while the sum is 69.

The spelling of 1851974555982 in words is "one trillion, eight hundred fifty-one billion, nine hundred seventy-four million, five hundred fifty-five thousand, nine hundred eighty-two".