4157620189 has 2 divisors, whose sum is σ = 4157620190. Its totient is φ = 4157620188.

The previous prime is 4157620183. The next prime is 4157620193. The reversal of 4157620189 is 9810267514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2513317689 + 1644302500 = 50133^2 + 40550^2 .

It is a cyclic number.

It is not a de Polignac number, because 4157620189 - 2⁹ = 4157619677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4157620183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078810094 + 2078810095.

It is an arithmetic number, because the mean of its divisors is an integer number (2078810095).

Almost surely, 2^4157620189 is an apocalyptic number.

It is an amenable number.

4157620189 is a deficient number, since it is larger than the sum of its proper divisors (1).

4157620189 is an equidigital number, since it uses as much as digits as its factorization.

4157620189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 4157620189 is about 64479.6106455366. The cubic root of 4157620189 is about 1607.9835600831.

The spelling of 4157620189 in words is "four billion, one hundred fifty-seven million, six hundred twenty thousand, one hundred eighty-nine".