53798667526464 has 168 divisors, whose sum is σ = 165647054763648. Its totient is φ = 15364996577280.

The previous prime is 53798667526459. The next prime is 53798667526517. The reversal of 53798667526464 is 46462576689735.

It is a tau number, because it is divible by the number of its divisors (168).

It is a self number, because there is not a number n which added to its sum of digits gives 53798667526464.

It is a congruent number.

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, 22800204 + ... + 25048884.

Almost surely, 2^{53798667526464} 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 53798667526464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82823527381824).

53798667526464 is an abundant number, since it is smaller than the sum of its proper divisors (111848387237184).

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

53798667526464 is a wasteful number, since it uses less digits than its factorization.

53798667526464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251253 (or 2251236 counting only the distinct ones).

The product of its digits is 10973491200, while the sum is 78.

The spelling of 53798667526464 in words is "fifty-three trillion, seven hundred ninety-eight billion, six hundred sixty-seven million, five hundred twenty-six thousand, four hundred sixty-four".