53487747181008 has 240 divisors, whose sum is σ = 174726670110720. Its totient is φ = 14956129661184.

The previous prime is 53487747180937. The next prime is 53487747181039. The reversal of 53487747181008 is 80018174778435.

53487747181008 is a `hidden beast` number, since 5 + 3 + 4 + 87 + 7 + 471 + 81 + 0 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1180539891 + ... + 1180585197.

It is an arithmetic number, because the mean of its divisors is an integer number (728027792128).

Almost surely, 2^{53487747181008} 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 53487747181008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87363335055360).

53487747181008 is an abundant number, since it is smaller than the sum of its proper divisors (121238922929712).

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

53487747181008 is a wasteful number, since it uses less digits than its factorization.

53487747181008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70294 (or 70285 counting only the distinct ones).

The product of its (nonzero) digits is 42147840, while the sum is 63.

The spelling of 53487747181008 in words is "fifty-three trillion, four hundred eighty-seven billion, seven hundred forty-seven million, one hundred eighty-one thousand, eight".