126234641751 has 4 divisors (see below), whose sum is σ = 168312855672. Its totient is φ = 84156427832.

The previous prime is 126234641719. The next prime is 126234641831. The reversal of 126234641751 is 157146432621.

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

It is a cyclic number.

It is not a de Polignac number, because 126234641751 - 2⁵ = 126234641719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126234646751) 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, 21039106956 + ... + 21039106961.

It is an arithmetic number, because the mean of its divisors is an integer number (42078213918).

Almost surely, 2^126234641751 is an apocalyptic number.

126234641751 is a deficient number, since it is larger than the sum of its proper divisors (42078213921).

126234641751 is an equidigital number, since it uses as much as digits as its factorization.

126234641751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42078213920.

The product of its digits is 241920, while the sum is 42.

The spelling of 126234641751 in words is "one hundred twenty-six billion, two hundred thirty-four million, six hundred forty-one thousand, seven hundred fifty-one".