36439458656 has 96 divisors (see below), whose sum is σ = 77142881088. Its totient is φ = 16882974720.

The previous prime is 36439458641. The next prime is 36439458667. The reversal of 36439458656 is 65685493463.

It is a junction number, because it is equal to n+sod(n) for n = 36439458595 and 36439458604.

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 15 ways as a sum of consecutive naturals, for example, 10139996 + ... + 10143588.

It is an arithmetic number, because the mean of its divisors is an integer number (803571678).

Almost surely, 2^36439458656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36439458656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38571440544).

36439458656 is an abundant number, since it is smaller than the sum of its proper divisors (40703422432).

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

36439458656 is a wasteful number, since it uses less digits than its factorization.

36439458656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904 (or 3896 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 59.

The spelling of 36439458656 in words is "thirty-six billion, four hundred thirty-nine million, four hundred fifty-eight thousand, six hundred fifty-six".