859550997652 has 24 divisors (see below), whose sum is σ = 1513576825376. Its totient is φ = 427100944608.

The previous prime is 859550997623. The next prime is 859550997689. The reversal of 859550997652 is 256799055958.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 8187163 + ... + 8291485.

Almost surely, 2^859550997652 is an apocalyptic number.

It is an amenable number.

859550997652 is a deficient number, since it is larger than the sum of its proper divisors (654025827724).

859550997652 is a wasteful number, since it uses less digits than its factorization.

859550997652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117127 (or 117125 counting only the distinct ones).

The product of its (nonzero) digits is 306180000, while the sum is 70.

The spelling of 859550997652 in words is "eight hundred fifty-nine billion, five hundred fifty million, nine hundred ninety-seven thousand, six hundred fifty-two".