4093219215921 has 16 divisors (see below), whose sum is σ = 5954392055808. Its totient is φ = 2480481147600.

The previous prime is 4093219215913. The next prime is 4093219215937. The reversal of 4093219215921 is 1295129123904.

It is not a de Polignac number, because 4093219215921 - 2³ = 4093219215913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4093219215221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6121641 + ... + 6757286.

It is an arithmetic number, because the mean of its divisors is an integer number (372149503488).

Almost surely, 2^{4093219215921} is an apocalyptic number.

It is an amenable number.

4093219215921 is a deficient number, since it is larger than the sum of its proper divisors (1861172839887).

4093219215921 is a wasteful number, since it uses less digits than its factorization.

4093219215921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12888572.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 4093219215921 in words is "four trillion, ninety-three billion, two hundred nineteen million, two hundred fifteen thousand, nine hundred twenty-one".