4447156117 has 2 divisors, whose sum is σ = 4447156118. Its totient is φ = 4447156116.

The previous prime is 4447156069. The next prime is 4447156141. The reversal of 4447156117 is 7116517444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4403516881 + 43639236 = 66359^2 + 6606^2 .

It is a cyclic number.

It is not a de Polignac number, because 4447156117 - 2⁷ = 4447155989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4447156117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4447136117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2223578058 + 2223578059.

It is an arithmetic number, because the mean of its divisors is an integer number (2223578059).

Almost surely, 2^4447156117 is an apocalyptic number.

It is an amenable number.

4447156117 is a deficient number, since it is larger than the sum of its proper divisors (1).

4447156117 is an equidigital number, since it uses as much as digits as its factorization.

4447156117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 40.

The square root of 4447156117 is about 66687.0011096615. The cubic root of 4447156117 is about 1644.4756928857.

The spelling of 4447156117 in words is "four billion, four hundred forty-seven million, one hundred fifty-six thousand, one hundred seventeen".