126735696218 has 8 divisors (see below), whose sum is σ = 201286105812. Its totient is φ = 59640327616.

The previous prime is 126735696211. The next prime is 126735696221. The reversal of 126735696218 is 812696537621.

It can be written as a sum of positive squares in 2 ways, for example, as 126112345129 + 623351089 = 355123^2 + 24967^2 .

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

It is a super-2 number, since 2×126735696218² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126735696211) 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, 1863760205 + ... + 1863760272.

Almost surely, 2^126735696218 is an apocalyptic number.

126735696218 is a deficient number, since it is larger than the sum of its proper divisors (74550409594).

126735696218 is a wasteful number, since it uses less digits than its factorization.

126735696218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727520496.

The product of its digits is 6531840, while the sum is 56.

The spelling of 126735696218 in words is "one hundred twenty-six billion, seven hundred thirty-five million, six hundred ninety-six thousand, two hundred eighteen".