2187216407135 has 8 divisors (see below), whose sum is σ = 2779051435056. Its totient is φ = 1646845294720.

The previous prime is 2187216407107. The next prime is 2187216407179. The reversal of 2187216407135 is 5317046127812.

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

It is not a de Polignac number, because 2187216407135 - 2³⁴ = 2170036537951 is a prime.

It is a super-2 number, since 2×2187216407135² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2187216407135.

It is a congruent number.

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, 12865978781 + ... + 12865978950.

It is an arithmetic number, because the mean of its divisors is an integer number (347381429382).

Almost surely, 2^{2187216407135} is an apocalyptic number.

2187216407135 is a deficient number, since it is larger than the sum of its proper divisors (591835027921).

2187216407135 is a wasteful number, since it uses less digits than its factorization.

2187216407135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25731957753.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 2187216407135 in words is "two trillion, one hundred eighty-seven billion, two hundred sixteen million, four hundred seven thousand, one hundred thirty-five".