11885858077 has 2 divisors, whose sum is σ = 11885858078. Its totient is φ = 11885858076.

The previous prime is 11885858041. The next prime is 11885858081. The reversal of 11885858077 is 77085858811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11885142361 + 715716 = 109019^2 + 846^2 .

It is a cyclic number.

It is not a de Polignac number, because 11885858077 - 2²³ = 11877469469 is a prime.

It is a super-2 number, since 2×11885858077² (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 (11885858027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5942929038 + 5942929039.

It is an arithmetic number, because the mean of its divisors is an integer number (5942929039).

Almost surely, 2^11885858077 is an apocalyptic number.

It is an amenable number.

11885858077 is a deficient number, since it is larger than the sum of its proper divisors (1).

11885858077 is an equidigital number, since it uses as much as digits as its factorization.

11885858077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5017600, while the sum is 58.

The spelling of 11885858077 in words is "eleven billion, eight hundred eighty-five million, eight hundred fifty-eight thousand, seventy-seven".