3785047881 has 16 divisors (see below), whose sum is σ = 5172111168. Its totient is φ = 2460729600.

The previous prime is 3785047879. The next prime is 3785047967. The reversal of 3785047881 is 1887405873.

It is not a de Polignac number, because 3785047881 - 2¹ = 3785047879 is a prime.

It is a super-2 number, since 2×3785047881² = 28653174922925180322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3785047081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346026 + ... + 356796.

It is an arithmetic number, because the mean of its divisors is an integer number (323256948).

Almost surely, 2^3785047881 is an apocalyptic number.

It is an amenable number.

3785047881 is a deficient number, since it is larger than the sum of its proper divisors (1387063287).

3785047881 is a wasteful number, since it uses less digits than its factorization.

3785047881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13672.

The product of its (nonzero) digits is 1505280, while the sum is 51.

The square root of 3785047881 is about 61522.7427948397. The cubic root of 3785047881 is about 1558.4413372584.

The spelling of 3785047881 in words is "three billion, seven hundred eighty-five million, forty-seven thousand, eight hundred eighty-one".