64234120422 has 32 divisors (see below), whose sum is σ = 131608654848. Its totient is φ = 20889128736.

The previous prime is 64234120417. The next prime is 64234120453. The reversal of 64234120422 is 22402143246.

It is a self number, because there is not a number n which added to its sum of digits gives 64234120422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78408 + ... + 366900.

It is an arithmetic number, because the mean of its divisors is an integer number (4112770464).

Almost surely, 2^64234120422 is an apocalyptic number.

64234120422 is an abundant number, since it is smaller than the sum of its proper divisors (67374534426).

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

64234120422 is a wasteful number, since it uses less digits than its factorization.

64234120422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289404.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 64234120422 its reverse (22402143246), we get a palindrome (86636263668).

The spelling of 64234120422 in words is "sixty-four billion, two hundred thirty-four million, one hundred twenty thousand, four hundred twenty-two".