3313478986821 has 24 divisors (see below), whose sum is σ = 4827602018304. Its totient is φ = 2189875232160.

The previous prime is 3313478986801. The next prime is 3313478986823. The reversal of 3313478986821 is 1286898743133.

3313478986821 is a `hidden beast` number, since 3 + 3 + 1 + 3 + 478 + 9 + 86 + 82 + 1 = 666.

It is not a de Polignac number, because 3313478986821 - 2⁵ = 3313478986789 is a prime.

It is a super-2 number, since 2×3313478986821² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3313478986823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324556 + ... + 2594666.

It is an arithmetic number, because the mean of its divisors is an integer number (201150084096).

Almost surely, 2^{3313478986821} is an apocalyptic number.

It is an amenable number.

3313478986821 is a deficient number, since it is larger than the sum of its proper divisors (1514123031483).

3313478986821 is a wasteful number, since it uses less digits than its factorization.

3313478986821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271521 (or 2271518 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 3313478986821 in words is "three trillion, three hundred thirteen billion, four hundred seventy-eight million, nine hundred eighty-six thousand, eight hundred twenty-one".