2876236226809 has 27 divisors (see below), whose sum is σ = 3223366963789. Its totient is φ = 2564543215520.

The previous prime is 2876236226807. The next prime is 2876236226821. The reversal of 2876236226809 is 9086226326782.

It is a happy number.

The square root of 2876236226809 is 1695947.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1029159525625 + 1847076701184 = 1014475^2 + 1359072^2 .

It is not a de Polignac number, because 2876236226809 - 2¹ = 2876236226807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2876236226807) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 988735647 + ... + 988738555.

Almost surely, 2^{2876236226809} is an apocalyptic number.

2876236226809 is the 1695947-th square number.

2876236226809 is the 847974-th centered octagonal number.

It is an amenable number.

2876236226809 is a deficient number, since it is larger than the sum of its proper divisors (347130736980).

2876236226809 is an frugal number, since it uses more digits than its factorization.

2876236226809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946 (or 2973 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 61.

The spelling of 2876236226809 in words is "two trillion, eight hundred seventy-six billion, two hundred thirty-six million, two hundred twenty-six thousand, eight hundred nine".