9141381877 has 2 divisors, whose sum is σ = 9141381878. Its totient is φ = 9141381876.

The previous prime is 9141381863. The next prime is 9141381881. The reversal of 9141381877 is 7781831419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8545338481 + 596043396 = 92441^2 + 24414^2 .

It is a cyclic number.

It is not a de Polignac number, because 9141381877 - 2¹¹ = 9141379829 is a prime.

It is a super-2 number, since 2×9141381877² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9141381877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9141381817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4570690938 + 4570690939.

It is an arithmetic number, because the mean of its divisors is an integer number (4570690939).

Almost surely, 2^9141381877 is an apocalyptic number.

It is an amenable number.

9141381877 is a deficient number, since it is larger than the sum of its proper divisors (1).

9141381877 is an equidigital number, since it uses as much as digits as its factorization.

9141381877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 49.

The square root of 9141381877 is about 95610.5740857150. The cubic root of 9141381877 is about 2090.9193605663.

The spelling of 9141381877 in words is "nine billion, one hundred forty-one million, three hundred eighty-one thousand, eight hundred seventy-seven".