136859237646 has 16 divisors (see below), whose sum is σ = 273722107008. Its totient is φ = 45619140600.

The previous prime is 136859237639. The next prime is 136859237659. The reversal of 136859237646 is 646732958631.

It is a self number, because there is not a number n which added to its sum of digits gives 136859237646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771231 + ... + 931941.

It is an arithmetic number, because the mean of its divisors is an integer number (17107631688).

Almost surely, 2^136859237646 is an apocalyptic number.

136859237646 is an abundant number, since it is smaller than the sum of its proper divisors (136862869362).

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

136859237646 is a wasteful number, since it uses less digits than its factorization.

136859237646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302647.

The product of its digits is 39191040, while the sum is 60.

The spelling of 136859237646 in words is "one hundred thirty-six billion, eight hundred fifty-nine million, two hundred thirty-seven thousand, six hundred forty-six".