1681765014 has 32 divisors (see below), whose sum is σ = 3512471040. Its totient is φ = 535802432.

The previous prime is 1681764977. The next prime is 1681765061. The reversal of 1681765014 is 4105671861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211234 + ... + 219050.

It is an arithmetic number, because the mean of its divisors is an integer number (109764720).

Almost surely, 2^1681765014 is an apocalyptic number.

1681765014 is an abundant number, since it is smaller than the sum of its proper divisors (1830706026).

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

1681765014 is a wasteful number, since it uses less digits than its factorization.

1681765014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9404.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1681765014 is about 41009.3283778216. The cubic root of 1681765014 is about 1189.2005585529.

The spelling of 1681765014 in words is "one billion, six hundred eighty-one million, seven hundred sixty-five thousand, fourteen".