88155486731969 has 2 divisors, whose sum is σ = 88155486731970. Its totient is φ = 88155486731968.

The previous prime is 88155486731947. The next prime is 88155486731999. The reversal of 88155486731969 is 96913768455188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70578262781569 + 17577223950400 = 8401087^2 + 4192520^2 .

It is a cyclic number.

It is not a de Polignac number, because 88155486731969 - 2⁸ = 88155486731713 is a prime.

It is a super-2 number, since 2×88155486731969² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 88155486731893 and 88155486731902.

It is not a weakly prime, because it can be changed into another prime (88155486731999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44077743365984 + 44077743365985.

It is an arithmetic number, because the mean of its divisors is an integer number (44077743365985).

Almost surely, 2^{88155486731969} is an apocalyptic number.

It is an amenable number.

88155486731969 is a deficient number, since it is larger than the sum of its proper divisors (1).

88155486731969 is an equidigital number, since it uses as much as digits as its factorization.

88155486731969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3135283200, while the sum is 80.

The spelling of 88155486731969 in words is "eighty-eight trillion, one hundred fifty-five billion, four hundred eighty-six million, seven hundred thirty-one thousand, nine hundred sixty-nine".