2820138607 has 16 divisors (see below), whose sum is σ = 3362631552. Its totient is φ = 2331220320.

The previous prime is 2820138571. The next prime is 2820138647. The reversal of 2820138607 is 7068310282.

It is not a de Polignac number, because 2820138607 - 2¹⁹ = 2819614319 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 (2820138647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137593 + ... + 156754.

It is an arithmetic number, because the mean of its divisors is an integer number (210164472).

Almost surely, 2^2820138607 is an apocalyptic number.

2820138607 is a deficient number, since it is larger than the sum of its proper divisors (542492945).

2820138607 is a wasteful number, since it uses less digits than its factorization.

2820138607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294438.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 2820138607 is about 53104.9772337772. The cubic root of 2820138607 is about 1412.8307911615.

Adding to 2820138607 its reverse (7068310282), we get a palindrome (9888448889).

The spelling of 2820138607 in words is "two billion, eight hundred twenty million, one hundred thirty-eight thousand, six hundred seven".