4231946857 has 2 divisors, whose sum is σ = 4231946858. Its totient is φ = 4231946856.

The previous prime is 4231946843. The next prime is 4231946863. The reversal of 4231946857 is 7586491324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3703452736 + 528494121 = 60856^2 + 22989^2 .

It is a cyclic number.

It is not a de Polignac number, because 4231946857 - 2³¹ = 2084463209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4231946857.

It is not a weakly prime, because it can be changed into another prime (4231946827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115973428 + 2115973429.

It is an arithmetic number, because the mean of its divisors is an integer number (2115973429).

Almost surely, 2^4231946857 is an apocalyptic number.

It is an amenable number.

4231946857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231946857 is an equidigital number, since it uses as much as digits as its factorization.

4231946857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 4231946857 is about 65053.4154137967. The cubic root of 4231946857 is about 1617.5091091811.

The spelling of 4231946857 in words is "four billion, two hundred thirty-one million, nine hundred forty-six thousand, eight hundred fifty-seven".