8145358877 has 2 divisors, whose sum is σ = 8145358878. Its totient is φ = 8145358876.

The previous prime is 8145358783. The next prime is 8145358883. The reversal of 8145358877 is 7788535418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4865620516 + 3279738361 = 69754^2 + 57269^2 .

It is a cyclic number.

It is not a de Polignac number, because 8145358877 - 2¹² = 8145354781 is a prime.

It is a super-2 number, since 2×8145358877² (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 (8145358777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4072679438 + 4072679439.

It is an arithmetic number, because the mean of its divisors is an integer number (4072679439).

Almost surely, 2^8145358877 is an apocalyptic number.

It is an amenable number.

8145358877 is a deficient number, since it is larger than the sum of its proper divisors (1).

8145358877 is an equidigital number, since it uses as much as digits as its factorization.

8145358877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7526400, while the sum is 56.

The square root of 8145358877 is about 90251.6419629028. The cubic root of 8145358877 is about 2012.0406061846.

The spelling of 8145358877 in words is "eight billion, one hundred forty-five million, three hundred fifty-eight thousand, eight hundred seventy-seven".