217590138053 has 8 divisors (see below), whose sum is σ = 219434186400. Its totient is φ = 215751206160.

The previous prime is 217590137993. The next prime is 217590138097. The reversal of 217590138053 is 350831095712.

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 217590138053 - 2¹⁰ = 217590137029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 217590137995 and 217590138013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217590137053) 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, 1193675 + ... + 1363832.

It is an arithmetic number, because the mean of its divisors is an integer number (27429273300).

Almost surely, 2^217590138053 is an apocalyptic number.

It is an amenable number.

217590138053 is a deficient number, since it is larger than the sum of its proper divisors (1844048347).

217590138053 is a wasteful number, since it uses less digits than its factorization.

217590138053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558227.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 217590138053 in words is "two hundred seventeen billion, five hundred ninety million, one hundred thirty-eight thousand, fifty-three".