53981798416 has 160 divisors (see below), whose sum is σ = 134569164800. Its totient is φ = 20403601920.

The previous prime is 53981798393. The next prime is 53981798449. The reversal of 53981798416 is 61489718935.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3558175 + ... + 3573313.

It is an arithmetic number, because the mean of its divisors is an integer number (841057280).

Almost surely, 2^53981798416 is an apocalyptic number.

53981798416 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53981798416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67284582400).

53981798416 is an abundant number, since it is smaller than the sum of its proper divisors (80587366384).

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

53981798416 is a wasteful number, since it uses less digits than its factorization.

53981798416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15277 (or 15271 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 61.

The spelling of 53981798416 in words is "fifty-three billion, nine hundred eighty-one million, seven hundred ninety-eight thousand, four hundred sixteen".