53740318720 has 208 divisors, whose sum is σ = 141717405600. Its totient is φ = 19398656000.

The previous prime is 53740318661. The next prime is 53740318817. The reversal of 53740318720 is 2781304735.

It is a happy number.

It is a super-2 number, since 2×53740318720² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33565920 + ... + 33567520.

Almost surely, 2^53740318720 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 53740318720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70858702800).

53740318720 is an abundant number, since it is smaller than the sum of its proper divisors (87977086880).

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

53740318720 is a wasteful number, since it uses less digits than its factorization.

53740318720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 53740318720 in words is "fifty-three billion, seven hundred forty million, three hundred eighteen thousand, seven hundred twenty".