53887218465 has 8 divisors (see below), whose sum is σ = 86219549568. Its totient is φ = 28739849840.

The previous prime is 53887218449. The next prime is 53887218499. The reversal of 53887218465 is 56481278835.

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

It is not a de Polignac number, because 53887218465 - 2⁴ = 53887218449 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1796240601 + ... + 1796240630.

It is an arithmetic number, because the mean of its divisors is an integer number (10777443696).

Almost surely, 2^53887218465 is an apocalyptic number.

It is an amenable number.

53887218465 is a deficient number, since it is larger than the sum of its proper divisors (32332331103).

53887218465 is a wasteful number, since it uses less digits than its factorization.

53887218465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592481239.

The product of its digits is 12902400, while the sum is 57.

The spelling of 53887218465 in words is "fifty-three billion, eight hundred eighty-seven million, two hundred eighteen thousand, four hundred sixty-five".