2009878326507 has 4 divisors (see below), whose sum is σ = 2679837768680. Its totient is φ = 1339918884336.

The previous prime is 2009878326497. The next prime is 2009878326527. The reversal of 2009878326507 is 7056238789002.

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

It is not a de Polignac number, because 2009878326507 - 2²⁴ = 2009861549291 is a prime.

It is a super-2 number, since 2×2009878326507² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2009878326527) 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, 334979721082 + ... + 334979721087.

It is an arithmetic number, because the mean of its divisors is an integer number (669959442170).

Almost surely, 2^{2009878326507} is an apocalyptic number.

2009878326507 is a deficient number, since it is larger than the sum of its proper divisors (669959442173).

2009878326507 is an equidigital number, since it uses as much as digits as its factorization.

2009878326507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669959442172.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 2009878326507 in words is "two trillion, nine billion, eight hundred seventy-eight million, three hundred twenty-six thousand, five hundred seven".