126296644993 has 4 divisors (see below), whose sum is σ = 126326885380. Its totient is φ = 126266404608.

The previous prime is 126296644937. The next prime is 126296645081. The reversal of 126296644993 is 399446692621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70284902769 + 56011742224 = 265113^2 + 236668^2 .

It is a cyclic number.

It is not a de Polignac number, because 126296644993 - 2¹³ = 126296636801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126296644093) 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 3 ways as a sum of consecutive naturals, for example, 15113928 + ... + 15122281.

It is an arithmetic number, because the mean of its divisors is an integer number (31581721345).

Almost surely, 2^126296644993 is an apocalyptic number.

It is an amenable number.

126296644993 is a deficient number, since it is larger than the sum of its proper divisors (30240387).

126296644993 is an equidigital number, since it uses as much as digits as its factorization.

126296644993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30240386.

The product of its digits is 30233088, while the sum is 61.

The spelling of 126296644993 in words is "one hundred twenty-six billion, two hundred ninety-six million, six hundred forty-four thousand, nine hundred ninety-three".