2172695612087 has 16 divisors (see below), whose sum is σ = 2917185718272. Its totient is φ = 1562778061920.

The previous prime is 2172695612071. The next prime is 2172695612089. The reversal of 2172695612087 is 7802165962712.

It is a cyclic number.

It is not a de Polignac number, because 2172695612087 - 2⁴ = 2172695612071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172695612089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1085261543 + ... + 1085263544.

It is an arithmetic number, because the mean of its divisors is an integer number (182324107392).

Almost surely, 2^{2172695612087} is an apocalyptic number.

2172695612087 is a deficient number, since it is larger than the sum of its proper divisors (744490106185).

2172695612087 is a wasteful number, since it uses less digits than its factorization.

2172695612087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170525118.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 2172695612087 in words is "two trillion, one hundred seventy-two billion, six hundred ninety-five million, six hundred twelve thousand, eighty-seven".