3781128876 has 48 divisors (see below), whose sum is σ = 10098412800. Its totient is φ = 1078672320.

The previous prime is 3781128863. The next prime is 3781128881. The reversal of 3781128876 is 6788211873.

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, 21475 + ... + 89573.

It is an arithmetic number, because the mean of its divisors is an integer number (210383600).

Almost surely, 2^3781128876 is an apocalyptic number.

It is an amenable number.

3781128876 is an abundant number, since it is smaller than the sum of its proper divisors (6317283924).

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

3781128876 is a wasteful number, since it uses less digits than its factorization.

3781128876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68774 (or 68772 counting only the distinct ones).

The product of its digits is 903168, while the sum is 51.

The square root of 3781128876 is about 61490.8844951835. The cubic root of 3781128876 is about 1557.9032860725.

The spelling of 3781128876 in words is "three billion, seven hundred eighty-one million, one hundred twenty-eight thousand, eight hundred seventy-six".