4012215647 has 16 divisors (see below), whose sum is σ = 4485573024. Its totient is φ = 3587601600.

The previous prime is 4012215643. The next prime is 4012215653. The reversal of 4012215647 is 7465122104.

It is not a de Polignac number, because 4012215647 - 2² = 4012215643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012215643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56483 + ... + 105899.

It is an arithmetic number, because the mean of its divisors is an integer number (280348314).

Almost surely, 2^4012215647 is an apocalyptic number.

4012215647 is a deficient number, since it is larger than the sum of its proper divisors (473357377).

4012215647 is an equidigital number, since it uses as much as digits as its factorization.

4012215647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49511 (or 49489 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 4012215647 is about 63342.0527532855. The cubic root of 4012215647 is about 1589.0153373615.

The spelling of 4012215647 in words is "four billion, twelve million, two hundred fifteen thousand, six hundred forty-seven".