3854781516 has 48 divisors (see below), whose sum is σ = 9193089024. Its totient is φ = 1256599296.

The previous prime is 3854781481. The next prime is 3854781523. The reversal of 3854781516 is 6151874583.

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, 1161876 + ... + 1165188.

It is an arithmetic number, because the mean of its divisors is an integer number (191522688).

Almost surely, 2^3854781516 is an apocalyptic number.

It is an amenable number.

3854781516 is an abundant number, since it is smaller than the sum of its proper divisors (5338307508).

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

3854781516 is a wasteful number, since it uses less digits than its factorization.

3854781516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5430 (or 5428 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The square root of 3854781516 is about 62086.8868280573. The cubic root of 3854781516 is about 1567.9537782042.

The spelling of 3854781516 in words is "three billion, eight hundred fifty-four million, seven hundred eighty-one thousand, five hundred sixteen".