406727272218 has 32 divisors (see below), whose sum is σ = 814850398080. Its totient is φ = 135343200960.

The previous prime is 406727272187. The next prime is 406727272219. The reversal of 406727272218 is 812272727604.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (406727272219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31876296 + ... + 31889052.

It is an arithmetic number, because the mean of its divisors is an integer number (25464074940).

Almost surely, 2^406727272218 is an apocalyptic number.

406727272218 is an abundant number, since it is smaller than the sum of its proper divisors (408123125862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406727272218 is a wasteful number, since it uses less digits than its factorization.

406727272218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21462.

The product of its (nonzero) digits is 1053696, while the sum is 48.

The spelling of 406727272218 in words is "four hundred six billion, seven hundred twenty-seven million, two hundred seventy-two thousand, two hundred eighteen".