53685446838 has 8 divisors (see below), whose sum is σ = 107370893688. Its totient is φ = 17895148944.

The previous prime is 53685446813. The next prime is 53685446839. The reversal of 53685446838 is 83864458635.

It is a sphenic number, since it is the product of 3 distinct primes.

53685446838 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53685446839) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4473787231 + ... + 4473787242.

It is an arithmetic number, because the mean of its divisors is an integer number (13421361711).

Almost surely, 2^53685446838 is an apocalyptic number.

53685446838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53685446838 is a wasteful number, since it uses less digits than its factorization.

53685446838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8947574478.

The product of its digits is 66355200, while the sum is 60.

The spelling of 53685446838 in words is "fifty-three billion, six hundred eighty-five million, four hundred forty-six thousand, eight hundred thirty-eight".