3815285872 has 10 divisors (see below), whose sum is σ = 7392116408. Its totient is φ = 1907642928.

The previous prime is 3815285869. The next prime is 3815285879. The reversal of 3815285872 is 2785825183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3815285879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119227668 + ... + 119227699.

Almost surely, 2^3815285872 is an apocalyptic number.

It is an amenable number.

3815285872 is a deficient number, since it is larger than the sum of its proper divisors (3576830536).

3815285872 is a wasteful number, since it uses less digits than its factorization.

3815285872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238455375 (or 238455369 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 49.

The square root of 3815285872 is about 61768.0003885507. Note that the first 3 decimals coincide. The cubic root of 3815285872 is about 1562.5803602574.

The spelling of 3815285872 in words is "three billion, eight hundred fifteen million, two hundred eighty-five thousand, eight hundred seventy-two".