126699698241 has 6 divisors (see below), whose sum is σ = 183010675250. Its totient is φ = 84466465488.

The previous prime is 126699698231. The next prime is 126699698297. The reversal of 126699698241 is 142896996621.

It can be written as a sum of positive squares in only one way, i.e., 126258698241 + 441000000 = 355329^2 + 21000^2 .

It is not a de Polignac number, because 126699698241 - 2³³ = 118109763649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126699698231) 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 in 5 ways as a sum of consecutive naturals, for example, 7038872116 + ... + 7038872133.

Almost surely, 2^126699698241 is an apocalyptic number.

It is an amenable number.

126699698241 is a deficient number, since it is larger than the sum of its proper divisors (56310977009).

126699698241 is a wasteful number, since it uses less digits than its factorization.

126699698241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14077744255 (or 14077744252 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The spelling of 126699698241 in words is "one hundred twenty-six billion, six hundred ninety-nine million, six hundred ninety-eight thousand, two hundred forty-one".