2215404044397 has 12 divisors (see below), whose sum is σ = 3368450594080. Its totient is φ = 1399202554248.

The previous prime is 2215404044393. The next prime is 2215404044407. The reversal of 2215404044397 is 7934404045122.

2215404044397 is a `hidden beast` number, since 2 + 2 + 154 + 0 + 404 + 4 + 3 + 97 = 666.

It is not a de Polignac number, because 2215404044397 - 2² = 2215404044393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215404044393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6477789433 + ... + 6477789774.

Almost surely, 2^{2215404044397} is an apocalyptic number.

It is an amenable number.

2215404044397 is a deficient number, since it is larger than the sum of its proper divisors (1153046549683).

2215404044397 is a wasteful number, since it uses less digits than its factorization.

2215404044397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12955579232 (or 12955579229 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 2215404044397 in words is "two trillion, two hundred fifteen billion, four hundred four million, forty-four thousand, three hundred ninety-seven".