4115661247 has 2 divisors, whose sum is σ = 4115661248. Its totient is φ = 4115661246.

The previous prime is 4115661229. The next prime is 4115661299. The reversal of 4115661247 is 7421665114.

4115661247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4115661247 - 2⁷ = 4115661119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4115661217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2057830623 + 2057830624.

It is an arithmetic number, because the mean of its divisors is an integer number (2057830624).

Almost surely, 2^4115661247 is an apocalyptic number.

4115661247 is a deficient number, since it is larger than the sum of its proper divisors (1).

4115661247 is an equidigital number, since it uses as much as digits as its factorization.

4115661247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 4115661247 is about 64153.4196048815. The cubic root of 4115661247 is about 1602.5559729055. Note that the first 3 decimals are identical.

The spelling of 4115661247 in words is "four billion, one hundred fifteen million, six hundred sixty-one thousand, two hundred forty-seven".