10887891149 has 2 divisors, whose sum is σ = 10887891150. Its totient is φ = 10887891148.

The previous prime is 10887891073. The next prime is 10887891191. The reversal of 10887891149 is 94119878801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10098843049 + 789048100 = 100493^2 + 28090^2 .

It is a cyclic number.

It is not a de Polignac number, because 10887891149 - 2²⁴ = 10871113933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10887891094 and 10887891103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10887891649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5443945574 + 5443945575.

It is an arithmetic number, because the mean of its divisors is an integer number (5443945575).

Almost surely, 2^10887891149 is an apocalyptic number.

It is an amenable number.

10887891149 is a deficient number, since it is larger than the sum of its proper divisors (1).

10887891149 is an equidigital number, since it uses as much as digits as its factorization.

10887891149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 56.

The spelling of 10887891149 in words is "ten billion, eight hundred eighty-seven million, eight hundred ninety-one thousand, one hundred forty-nine".