126775880901 has 6 divisors (see below), whose sum is σ = 183120716870. Its totient is φ = 84517253928.

The previous prime is 126775880897. The next prime is 126775880923. The reversal of 126775880901 is 109088577621.

It can be written as a sum of positive squares in only one way, i.e., 124715628801 + 2060252100 = 353151^2 + 45390^2 .

It is not a de Polignac number, because 126775880901 - 2² = 126775880897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126775880981) 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 in 5 ways as a sum of consecutive naturals, for example, 7043104486 + ... + 7043104503.

Almost surely, 2^126775880901 is an apocalyptic number.

It is an amenable number.

126775880901 is a deficient number, since it is larger than the sum of its proper divisors (56344835969).

126775880901 is a wasteful number, since it uses less digits than its factorization.

126775880901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14086208995 (or 14086208992 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

The spelling of 126775880901 in words is "one hundred twenty-six billion, seven hundred seventy-five million, eight hundred eighty thousand, nine hundred one".