126765506212 has 24 divisors (see below), whose sum is σ = 237921364800. Its totient is φ = 58913858016.

The previous prime is 126765506209. The next prime is 126765506213. The reversal of 126765506212 is 212605567621.

It is a super-2 number, since 2×126765506212² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126765506213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15731512 + ... + 15739567.

It is an arithmetic number, because the mean of its divisors is an integer number (9913390200).

Almost surely, 2^126765506212 is an apocalyptic number.

It is an amenable number.

126765506212 is a deficient number, since it is larger than the sum of its proper divisors (111155858588).

126765506212 is a wasteful number, since it uses less digits than its factorization.

126765506212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31471155 (or 31471153 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 126765506212 in words is "one hundred twenty-six billion, seven hundred sixty-five million, five hundred six thousand, two hundred twelve".