53978424720 has 160 divisors (see below), whose sum is σ = 182703841920. Its totient is φ = 13074309120.

The previous prime is 53978424683. The next prime is 53978424727. The reversal of 53978424720 is 2742487935.

It is not an unprimeable number, because it can be changed into a prime (53978424727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3257416 + ... + 3273944.

It is an arithmetic number, because the mean of its divisors is an integer number (1141899012).

Almost surely, 2^53978424720 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 53978424720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91351920960).

53978424720 is an abundant number, since it is smaller than the sum of its proper divisors (128725417200).

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

53978424720 is a wasteful number, since it uses less digits than its factorization.

53978424720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17793 (or 17787 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 53978424720 in words is "fifty-three billion, nine hundred seventy-eight million, four hundred twenty-four thousand, seven hundred twenty".