102100687877 has 2 divisors, whose sum is σ = 102100687878. Its totient is φ = 102100687876.

The previous prime is 102100687861. The next prime is 102100687919. The reversal of 102100687877 is 778786001201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91647874756 + 10452813121 = 302734^2 + 102239^2 .

It is a cyclic number.

It is not a de Polignac number, because 102100687877 - 2⁴ = 102100687861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102100684877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050343938 + 51050343939.

It is an arithmetic number, because the mean of its divisors is an integer number (51050343939).

Almost surely, 2^102100687877 is an apocalyptic number.

It is an amenable number.

102100687877 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100687877 is an equidigital number, since it uses as much as digits as its factorization.

102100687877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 47.

The spelling of 102100687877 in words is "one hundred two billion, one hundred million, six hundred eighty-seven thousand, eight hundred seventy-seven".