3815478022212 has 36 divisors (see below), whose sum is σ = 10152295324080. Its totient is φ = 1204887796272.

The previous prime is 3815478022177. The next prime is 3815478022249. The reversal of 3815478022212 is 2122208745183.

3815478022212 is a `hidden beast` number, since 3 + 8 + 1 + 547 + 80 + 2 + 2 + 21 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2789091438 + ... + 2789092805.

Almost surely, 2^{3815478022212} is an apocalyptic number.

It is an amenable number.

3815478022212 is an abundant number, since it is smaller than the sum of its proper divisors (6336817301868).

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

3815478022212 is a wasteful number, since it uses less digits than its factorization.

3815478022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578184272 (or 5578184267 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 3815478022212 in words is "three trillion, eight hundred fifteen billion, four hundred seventy-eight million, twenty-two thousand, two hundred twelve".