53420793648 has 80 divisors (see below), whose sum is σ = 142586112000. Its totient is φ = 17216709120.

The previous prime is 53420793641. The next prime is 53420793683. The reversal of 53420793648 is 84639702435.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 53420793648.

It is not an unprimeable number, because it can be changed into a prime (53420793641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1664053 + ... + 1695851.

It is an arithmetic number, because the mean of its divisors is an integer number (1782326400).

Almost surely, 2^53420793648 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 53420793648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71293056000).

53420793648 is an abundant number, since it is smaller than the sum of its proper divisors (89165318352).

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

53420793648 is a wasteful number, since it uses less digits than its factorization.

53420793648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32970 (or 32964 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 53420793648 in words is "fifty-three billion, four hundred twenty million, seven hundred ninety-three thousand, six hundred forty-eight".