212617934342 has 32 divisors (see below), whose sum is σ = 348584300064. Its totient is φ = 96460243200.

The previous prime is 212617934341. The next prime is 212617934351. The reversal of 212617934342 is 243439716212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212617934293 and 212617934302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212617934341) 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, 31916492 + ... + 31923152.

It is an arithmetic number, because the mean of its divisors is an integer number (10893259377).

Almost surely, 2^212617934342 is an apocalyptic number.

212617934342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212617934342 is a deficient number, since it is larger than the sum of its proper divisors (135966365722).

212617934342 is a wasteful number, since it uses less digits than its factorization.

212617934342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9224.

The product of its digits is 435456, while the sum is 44.

The spelling of 212617934342 in words is "two hundred twelve billion, six hundred seventeen million, nine hundred thirty-four thousand, three hundred forty-two".