53444507447968 has 144 divisors (see below), whose sum is σ = 134617182384384. Its totient is φ = 20693033141760.

The previous prime is 53444507447963. The next prime is 53444507448011. The reversal of 53444507447968 is 86974470544435.

It is a hoax number, since the sum of its digits (70) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 53444507447897 and 53444507447906.

It is not an unprimeable number, because it can be changed into a prime (53444507447963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26934348 + ... + 28850443.

It is an arithmetic number, because the mean of its divisors is an integer number (934841544336).

Almost surely, 2^{53444507447968} is an apocalyptic number.

It is an amenable number.

53444507447968 is an abundant number, since it is smaller than the sum of its proper divisors (81172674936416).

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

53444507447968 is a wasteful number, since it uses less digits than its factorization.

53444507447968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55784875 (or 55784860 counting only the distinct ones).

The product of its (nonzero) digits is 1625702400, while the sum is 70.

The spelling of 53444507447968 in words is "fifty-three trillion, four hundred forty-four billion, five hundred seven million, four hundred forty-seven thousand, nine hundred sixty-eight".