53781741816 has 32 divisors (see below), whose sum is σ = 146677478400. Its totient is φ = 16297497440.

The previous prime is 53781741803. The next prime is 53781741817. The reversal of 53781741816 is 61814718735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53781741817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101859096 + ... + 101859623.

It is an arithmetic number, because the mean of its divisors is an integer number (4583671200).

Almost surely, 2^53781741816 is an apocalyptic number.

It is an amenable number.

53781741816 is an abundant number, since it is smaller than the sum of its proper divisors (92895736584).

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

53781741816 is a wasteful number, since it uses less digits than its factorization.

53781741816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203718739 (or 203718735 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

It can be divided in two parts, 53781 and 741816, that added together give a palindrome (795597).

The spelling of 53781741816 in words is "fifty-three billion, seven hundred eighty-one million, seven hundred forty-one thousand, eight hundred sixteen".