53402105091744 has 144 divisors (see below), whose sum is σ = 155233241130240. Its totient is φ = 17406248855040.

The previous prime is 53402105091737. The next prime is 53402105091779. The reversal of 53402105091744 is 44719050120435.

53402105091744 is a `hidden beast` number, since 5 + 340 + 210 + 5 + 0 + 91 + 7 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 53402105091744.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13232709 + ... + 16790139.

It is an arithmetic number, because the mean of its divisors is an integer number (1078008618960).

Almost surely, 2^{53402105091744} 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 53402105091744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77616620565120).

53402105091744 is an abundant number, since it is smaller than the sum of its proper divisors (101831136038496).

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

53402105091744 is a wasteful number, since it uses less digits than its factorization.

53402105091744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558603 (or 3558592 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 53402105091744 in words is "fifty-three trillion, four hundred two billion, one hundred five million, ninety-one thousand, seven hundred forty-four".