1685053874 has 64 divisors (see below), whose sum is σ = 3198009600. Its totient is φ = 649555200.

The previous prime is 1685053859. The next prime is 1685053891. The reversal of 1685053874 is 4783505861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468764 + ... + 472344.

It is an arithmetic number, because the mean of its divisors is an integer number (49968900).

Almost surely, 2^1685053874 is an apocalyptic number.

1685053874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1685053874 is a deficient number, since it is larger than the sum of its proper divisors (1512955726).

1685053874 is a wasteful number, since it uses less digits than its factorization.

1685053874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 1685053874 is about 41049.4077180171. The cubic root of 1685053874 is about 1189.9752540578.

The spelling of 1685053874 in words is "one billion, six hundred eighty-five million, fifty-three thousand, eight hundred seventy-four".