100198829261 has 2 divisors, whose sum is σ = 100198829262. Its totient is φ = 100198829260.

The previous prime is 100198829221. The next prime is 100198829323. The reversal of 100198829261 is 162928891001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97262273161 + 2936556100 = 311869^2 + 54190^2 .

It is a cyclic number.

It is not a de Polignac number, because 100198829261 - 2⁶ = 100198829197 is a prime.

It is a super-2 number, since 2×100198829261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100198829221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50099414630 + 50099414631.

It is an arithmetic number, because the mean of its divisors is an integer number (50099414631).

Almost surely, 2^100198829261 is an apocalyptic number.

It is an amenable number.

100198829261 is a deficient number, since it is larger than the sum of its proper divisors (1).

100198829261 is an equidigital number, since it uses as much as digits as its factorization.

100198829261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 47.

The spelling of 100198829261 in words is "one hundred billion, one hundred ninety-eight million, eight hundred twenty-nine thousand, two hundred sixty-one".