53378604720 has 420 divisors, whose sum is σ = 216463578480. Its totient is φ = 12200170752.

The previous prime is 53378604703. The next prime is 53378604761. The reversal of 53378604720 is 2740687335.

53378604720 is a `hidden beast` number, since 5 + 3 + 37 + 8 + 604 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (420).

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

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 2848341 + ... + 2867019.

Almost surely, 2^53378604720 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 53378604720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108231789240).

53378604720 is an abundant number, since it is smaller than the sum of its proper divisors (163084973760).

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

53378604720 is a wasteful number, since it uses less digits than its factorization.

53378604720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18724 (or 18696 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 53378604720 in words is "fifty-three billion, three hundred seventy-eight million, six hundred four thousand, seven hundred twenty".