53761391808 has 84 divisors (see below), whose sum is σ = 143671213800. Its totient is φ = 17742387200.

The previous prime is 53761391807. The next prime is 53761391839. The reversal of 53761391808 is 80819316735.

It is not an unprimeable number, because it can be changed into a prime (53761391807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1944868 + ... + 1972316.

Almost surely, 2^53761391808 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 53761391808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71835606900).

53761391808 is an abundant number, since it is smaller than the sum of its proper divisors (89909821992).

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

53761391808 is a wasteful number, since it uses less digits than its factorization.

53761391808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27666 (or 27555 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 53761391808 in words is "fifty-three billion, seven hundred sixty-one million, three hundred ninety-one thousand, eight hundred eight".