102554517889 has 2 divisors, whose sum is σ = 102554517890. Its totient is φ = 102554517888.

The previous prime is 102554517881. The next prime is 102554517907. The reversal of 102554517889 is 988715455201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102506907889 + 47610000 = 320167^2 + 6900^2 .

It is a cyclic number.

It is not a de Polignac number, because 102554517889 - 2³ = 102554517881 is a prime.

It is not a weakly prime, because it can be changed into another prime (102554517881) 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, 51277258944 + 51277258945.

It is an arithmetic number, because the mean of its divisors is an integer number (51277258945).

Almost surely, 2^102554517889 is an apocalyptic number.

It is an amenable number.

102554517889 is a deficient number, since it is larger than the sum of its proper divisors (1).

102554517889 is an equidigital number, since it uses as much as digits as its factorization.

102554517889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032000, while the sum is 55.

The spelling of 102554517889 in words is "one hundred two billion, five hundred fifty-four million, five hundred seventeen thousand, eight hundred eighty-nine".