11895225839977 has 2 divisors, whose sum is σ = 11895225839978. Its totient is φ = 11895225839976.

The previous prime is 11895225839957. The next prime is 11895225840007. The reversal of 11895225839977 is 77993852259811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9477648659241 + 2417577180736 = 3078579^2 + 1554856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11895225839977 is a prime.

It is a super-2 number, since 2×11895225839977² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11895225839957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5947612919988 + 5947612919989.

It is an arithmetic number, because the mean of its divisors is an integer number (5947612919989).

Almost surely, 2^{11895225839977} is an apocalyptic number.

It is an amenable number.

11895225839977 is a deficient number, since it is larger than the sum of its proper divisors (1).

11895225839977 is an equidigital number, since it uses as much as digits as its factorization.

11895225839977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 685843200, while the sum is 76.

The spelling of 11895225839977 in words is "eleven trillion, eight hundred ninety-five billion, two hundred twenty-five million, eight hundred thirty-nine thousand, nine hundred seventy-seven".