64835729422 has 4 divisors (see below), whose sum is σ = 97253594136. Its totient is φ = 32417864710.

The previous prime is 64835729419. The next prime is 64835729437. The reversal of 64835729422 is 22492753846.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64835729422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16208932354 + ... + 16208932357.

It is an arithmetic number, because the mean of its divisors is an integer number (24313398534).

Almost surely, 2^64835729422 is an apocalyptic number.

64835729422 is a deficient number, since it is larger than the sum of its proper divisors (32417864714).

64835729422 is a wasteful number, since it uses less digits than its factorization.

64835729422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32417864713.

The product of its digits is 5806080, while the sum is 52.

The spelling of 64835729422 in words is "sixty-four billion, eight hundred thirty-five million, seven hundred twenty-nine thousand, four hundred twenty-two".