64534622236 has 24 divisors (see below), whose sum is σ = 129075055200. Its totient is φ = 27656450112.

The previous prime is 64534622219. The next prime is 64534622291. The reversal of 64534622236 is 63222643546.

It is a junction number, because it is equal to n+sod(n) for n = 64534622192 and 64534622201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866190 + ... + 937738.

It is an arithmetic number, because the mean of its divisors is an integer number (5378127300).

Almost surely, 2^64534622236 is an apocalyptic number.

It is an amenable number.

64534622236 is an abundant number, since it is smaller than the sum of its proper divisors (64540432964).

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

64534622236 is a wasteful number, since it uses less digits than its factorization.

64534622236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103773 (or 103771 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 43.

The spelling of 64534622236 in words is "sixty-four billion, five hundred thirty-four million, six hundred twenty-two thousand, two hundred thirty-six".