102827591292989 has 2 divisors, whose sum is σ = 102827591292990. Its totient is φ = 102827591292988.

The previous prime is 102827591292973. The next prime is 102827591293057. The reversal of 102827591292989 is 989292195728201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74678252988964 + 28149338304025 = 8641658^2 + 5305595^2 .

It is a cyclic number.

It is not a de Polignac number, because 102827591292989 - 2⁴ = 102827591292973 is a prime.

It is a super-2 number, since 2×102827591292989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102827591292289) 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, 51413795646494 + 51413795646495.

It is an arithmetic number, because the mean of its divisors is an integer number (51413795646495).

Almost surely, 2^{102827591292989} is an apocalyptic number.

It is an amenable number.

102827591292989 is a deficient number, since it is larger than the sum of its proper divisors (1).

102827591292989 is an equidigital number, since it uses as much as digits as its factorization.

102827591292989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235146240, while the sum is 74.

The spelling of 102827591292989 in words is "one hundred two trillion, eight hundred twenty-seven billion, five hundred ninety-one million, two hundred ninety-two thousand, nine hundred eighty-nine".