11645890877 has 2 divisors, whose sum is σ = 11645890878. Its totient is φ = 11645890876.

The previous prime is 11645890843. The next prime is 11645890967. The reversal of 11645890877 is 77809854611.

It is a happy number.

11645890877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10761780121 + 884110756 = 103739^2 + 29734^2 .

It is a cyclic number.

It is not a de Polignac number, because 11645890877 - 2¹² = 11645886781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11645896877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5822945438 + 5822945439.

It is an arithmetic number, because the mean of its divisors is an integer number (5822945439).

Almost surely, 2^11645890877 is an apocalyptic number.

It is an amenable number.

11645890877 is a deficient number, since it is larger than the sum of its proper divisors (1).

11645890877 is an equidigital number, since it uses as much as digits as its factorization.

11645890877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 11645890877 in words is "eleven billion, six hundred forty-five million, eight hundred ninety thousand, eight hundred seventy-seven".