53069721447 has 8 divisors (see below), whose sum is σ = 72094716144. Its totient is φ = 34712270528.

The previous prime is 53069721431. The next prime is 53069721449. The reversal of 53069721447 is 74412796035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53069721447 - 2⁴ = 53069721431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53069721396 and 53069721405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53069721449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166885758 + ... + 166886075.

It is an arithmetic number, because the mean of its divisors is an integer number (9011839518).

Almost surely, 2^53069721447 is an apocalyptic number.

53069721447 is a deficient number, since it is larger than the sum of its proper divisors (19024994697).

53069721447 is a wasteful number, since it uses less digits than its factorization.

53069721447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333771889.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 53069721447 in words is "fifty-three billion, sixty-nine million, seven hundred twenty-one thousand, four hundred forty-seven".