53889787897345 has 8 divisors (see below), whose sum is σ = 64908146019240. Its totient is φ = 42951563289600.

The previous prime is 53889787897339. The next prime is 53889787897403. The reversal of 53889787897345 is 54379878798835.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32213429361 + 53857574467984 = 179481^2 + 7338772^2 .

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

It is not a de Polignac number, because 53889787897345 - 2⁷ = 53889787897217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53889787897345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20033377056 + ... + 20033379745.

It is an arithmetic number, because the mean of its divisors is an integer number (8113518252405).

Almost surely, 2^{53889787897345} is an apocalyptic number.

It is an amenable number.

53889787897345 is a deficient number, since it is larger than the sum of its proper divisors (11018358121895).

53889787897345 is a wasteful number, since it uses less digits than its factorization.

53889787897345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40066757075.

The product of its digits is 102419251200, while the sum is 91.

The spelling of 53889787897345 in words is "fifty-three trillion, eight hundred eighty-nine billion, seven hundred eighty-seven million, eight hundred ninety-seven thousand, three hundred forty-five".