126135637707 has 8 divisors (see below), whose sum is σ = 168211411776. Its totient is φ = 84075144392.

The previous prime is 126135637673. The next prime is 126135637739. The reversal of 126135637707 is 707736531621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126135637707 - 2⁶ = 126135637643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126135637807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3800913 + ... + 3833954.

It is an arithmetic number, because the mean of its divisors is an integer number (21026426472).

Almost surely, 2^126135637707 is an apocalyptic number.

126135637707 is a deficient number, since it is larger than the sum of its proper divisors (42075774069).

126135637707 is an equidigital number, since it uses as much as digits as its factorization.

126135637707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640377.

The product of its (nonzero) digits is 1111320, while the sum is 48.

The spelling of 126135637707 in words is "one hundred twenty-six billion, one hundred thirty-five million, six hundred thirty-seven thousand, seven hundred seven".