2172557360539 has 4 divisors (see below), whose sum is σ = 2174348423056. Its totient is φ = 2170766298024.

The previous prime is 2172557360521. The next prime is 2172557360543. The reversal of 2172557360539 is 9350637552712.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2172557360539 - 2³⁹ = 1622801546651 is a prime.

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 2172557360539.

It is not an unprimeable number, because it can be changed into a prime (2172557360839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895529439 + ... + 895531864.

It is an arithmetic number, because the mean of its divisors is an integer number (543587105764).

Almost surely, 2^{2172557360539} is an apocalyptic number.

2172557360539 is a deficient number, since it is larger than the sum of its proper divisors (1791062517).

2172557360539 is a wasteful number, since it uses less digits than its factorization.

2172557360539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791062516.

The product of its (nonzero) digits is 11907000, while the sum is 55.

The spelling of 2172557360539 in words is "two trillion, one hundred seventy-two billion, five hundred fifty-seven million, three hundred sixty thousand, five hundred thirty-nine".