126745327707 has 4 divisors (see below), whose sum is σ = 168993770280. Its totient is φ = 84496885136.

The previous prime is 126745327697. The next prime is 126745327733. The reversal of 126745327707 is 707723547621.

It is a happy number.

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 126745327707 - 2⁴ = 126745327691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126745327707.

It is not an unprimeable number, because it can be changed into a prime (126745327757) 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, 21124221282 + ... + 21124221287.

It is an arithmetic number, because the mean of its divisors is an integer number (42248442570).

Almost surely, 2^126745327707 is an apocalyptic number.

126745327707 is a deficient number, since it is larger than the sum of its proper divisors (42248442573).

126745327707 is an equidigital number, since it uses as much as digits as its factorization.

126745327707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42248442572.

The product of its (nonzero) digits is 3457440, while the sum is 51.

The spelling of 126745327707 in words is "one hundred twenty-six billion, seven hundred forty-five million, three hundred twenty-seven thousand, seven hundred seven".