2100786282029 has 2 divisors, whose sum is σ = 2100786282030. Its totient is φ = 2100786282028.

The previous prime is 2100786281987. The next prime is 2100786282041. The reversal of 2100786282029 is 9202826870012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2097856766404 + 2929515625 = 1448398^2 + 54125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100786282029 - 2³² = 2096491314733 is a prime.

It is a super-2 number, since 2×2100786282029² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100786282059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050393141014 + 1050393141015.

It is an arithmetic number, because the mean of its divisors is an integer number (1050393141015).

Almost surely, 2^{2100786282029} is an apocalyptic number.

It is an amenable number.

2100786282029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100786282029 is an equidigital number, since it uses as much as digits as its factorization.

2100786282029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 2100786282029 in words is "two trillion, one hundred billion, seven hundred eighty-six million, two hundred eighty-two thousand, twenty-nine".