217602467142 has 16 divisors (see below), whose sum is σ = 460805224752. Its totient is φ = 68267440640.

The previous prime is 217602467141. The next prime is 217602467153. The reversal of 217602467142 is 241764206712.

It is a junction number, because it is equal to n+sod(n) for n = 217602467094 and 217602467103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217602467141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066678659 + ... + 1066678862.

It is an arithmetic number, because the mean of its divisors is an integer number (28800326547).

Almost surely, 2^217602467142 is an apocalyptic number.

217602467142 is an abundant number, since it is smaller than the sum of its proper divisors (243202757610).

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

217602467142 is a wasteful number, since it uses less digits than its factorization.

217602467142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133357543.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 217602467142 in words is "two hundred seventeen billion, six hundred two million, four hundred sixty-seven thousand, one hundred forty-two".