8427958157 has 2 divisors, whose sum is σ = 8427958158. Its totient is φ = 8427958156.

The previous prime is 8427958129. The next prime is 8427958171. The reversal of 8427958157 is 7518597248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8213071876 + 214886281 = 90626^2 + 14659^2 .

It is a cyclic number.

It is not a de Polignac number, because 8427958157 - 2⁶ = 8427958093 is a prime.

It is a super-2 number, since 2×8427958157² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8427958177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4213979078 + 4213979079.

It is an arithmetic number, because the mean of its divisors is an integer number (4213979079).

Almost surely, 2^8427958157 is an apocalyptic number.

It is an amenable number.

8427958157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8427958157 is an equidigital number, since it uses as much as digits as its factorization.

8427958157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5644800, while the sum is 56.

The square root of 8427958157 is about 91803.9114471709. The cubic root of 8427958157 is about 2035.0454993681.

The spelling of 8427958157 in words is "eight billion, four hundred twenty-seven million, nine hundred fifty-eight thousand, one hundred fifty-seven".