2070879345209 has 4 divisors (see below), whose sum is σ = 2071050546804. Its totient is φ = 2070708143616.

The previous prime is 2070879345203. The next prime is 2070879345211. The reversal of 2070879345209 is 9025439780702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 466168045225 + 1604711299984 = 682765^2 + 1266772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070879345209 - 2²⁰ = 2070878296633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2070879345203) 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, 85582652 + ... + 85606845.

It is an arithmetic number, because the mean of its divisors is an integer number (517762636701).

Almost surely, 2^{2070879345209} is an apocalyptic number.

It is an amenable number.

2070879345209 is a deficient number, since it is larger than the sum of its proper divisors (171201595).

2070879345209 is a wasteful number, since it uses less digits than its factorization.

2070879345209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171201594.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 2070879345209 in words is "two trillion, seventy billion, eight hundred seventy-nine million, three hundred forty-five thousand, two hundred nine".