1680036854 has 4 divisors (see below), whose sum is σ = 2520055284. Its totient is φ = 840018426.

The previous prime is 1680036803. The next prime is 1680036871. The reversal of 1680036854 is 4586300861.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420009212 + ... + 420009215.

It is an arithmetic number, because the mean of its divisors is an integer number (630013821).

Almost surely, 2^1680036854 is an apocalyptic number.

1680036854 is a deficient number, since it is larger than the sum of its proper divisors (840018430).

1680036854 is an equidigital number, since it uses as much as digits as its factorization.

1680036854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840018429.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 1680036854 is about 40988.2526341390. The cubic root of 1680036854 is about 1188.7930832390.

The spelling of 1680036854 in words is "one billion, six hundred eighty million, thirty-six thousand, eight hundred fifty-four".