1982858506874 has 128 divisors (see below), whose sum is σ = 3693512908800. Its totient is φ = 779534046720.

The previous prime is 1982858506831. The next prime is 1982858506901. The reversal of 1982858506874 is 4786058582891.

It is a junction number, because it is equal to n+sod(n) for n = 1982858506798 and 1982858506807.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 867011759 + ... + 867014045.

It is an arithmetic number, because the mean of its divisors is an integer number (28855569600).

Almost surely, 2^{1982858506874} is an apocalyptic number.

1982858506874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1982858506874 is a deficient number, since it is larger than the sum of its proper divisors (1710654401926).

1982858506874 is a wasteful number, since it uses less digits than its factorization.

1982858506874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148.

The product of its (nonzero) digits is 309657600, while the sum is 71.

The spelling of 1982858506874 in words is "one trillion, nine hundred eighty-two billion, eight hundred fifty-eight million, five hundred six thousand, eight hundred seventy-four".