126609015218 has 16 divisors (see below), whose sum is σ = 217064682240. Its totient is φ = 54255842496.

The previous prime is 126609015217. The next prime is 126609015233. The reversal of 126609015218 is 812510906621.

It is not an unprimeable number, because it can be changed into a prime (126609015217) 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, 276071 + ... + 573962.

It is an arithmetic number, because the mean of its divisors is an integer number (13566542640).

Almost surely, 2^126609015218 is an apocalyptic number.

126609015218 is a deficient number, since it is larger than the sum of its proper divisors (90455667022).

126609015218 is a wasteful number, since it uses less digits than its factorization.

126609015218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860681.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 126609015218 in words is "one hundred twenty-six billion, six hundred nine million, fifteen thousand, two hundred eighteen".