53808782040 has 288 divisors, whose sum is σ = 199336410000. Its totient is φ = 12547851264.

The previous prime is 53808782029. The next prime is 53808782077. The reversal of 53808782040 is 4028780835.

53808782040 is a `hidden beast` number, since 538 + 0 + 8 + 78 + 2 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1132686 + ... + 1179234.

Almost surely, 2^53808782040 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 53808782040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99668205000).

53808782040 is an abundant number, since it is smaller than the sum of its proper divisors (145527627960).

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

53808782040 is a wasteful number, since it uses less digits than its factorization.

53808782040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46611 (or 46591 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 53808782040 in words is "fifty-three billion, eight hundred eight million, seven hundred eighty-two thousand, forty".