126763626281 has 4 divisors (see below), whose sum is σ = 126764410512. Its totient is φ = 126762842052.

The previous prime is 126763626271. The next prime is 126763626331. The reversal of 126763626281 is 182626367621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 126763626281 - 2¹⁸ = 126763364137 is a prime.

It is a super-2 number, since 2×126763626281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126763626251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50375 + ... + 506028.

It is an arithmetic number, because the mean of its divisors is an integer number (31691102628).

Almost surely, 2^126763626281 is an apocalyptic number.

It is an amenable number.

126763626281 is a deficient number, since it is larger than the sum of its proper divisors (784231).

126763626281 is an equidigital number, since it uses as much as digits as its factorization.

126763626281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784230.

The product of its digits is 1741824, while the sum is 50.

The spelling of 126763626281 in words is "one hundred twenty-six billion, seven hundred sixty-three million, six hundred twenty-six thousand, two hundred eighty-one".