2172705350015 has 8 divisors (see below), whose sum is σ = 2670837796368. Its totient is φ = 1695770029120.

The previous prime is 2172705350009. The next prime is 2172705350017. The reversal of 2172705350015 is 5100535072712.

It is a happy number.

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

It is not a de Polignac number, because 2172705350015 - 2¹² = 2172705345919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172705350017) 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, 5299281137 + ... + 5299281546.

It is an arithmetic number, because the mean of its divisors is an integer number (333854724546).

Almost surely, 2^{2172705350015} is an apocalyptic number.

2172705350015 is a deficient number, since it is larger than the sum of its proper divisors (498132446353).

2172705350015 is a wasteful number, since it uses less digits than its factorization.

2172705350015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10598562729.

The product of its (nonzero) digits is 73500, while the sum is 38.

The spelling of 2172705350015 in words is "two trillion, one hundred seventy-two billion, seven hundred five million, three hundred fifty thousand, fifteen".