2820878537 has 2 divisors, whose sum is σ = 2820878538. Its totient is φ = 2820878536.

The previous prime is 2820878461. The next prime is 2820878569. The reversal of 2820878537 is 7358780282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2573634361 + 247244176 = 50731^2 + 15724^2 .

It is a cyclic number.

It is not a de Polignac number, because 2820878537 - 2¹⁰ = 2820877513 is a prime.

It is not a weakly prime, because it can be changed into another prime (2820878237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410439268 + 1410439269.

It is an arithmetic number, because the mean of its divisors is an integer number (1410439269).

Almost surely, 2^2820878537 is an apocalyptic number.

It is an amenable number.

2820878537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2820878537 is an equidigital number, since it uses as much as digits as its factorization.

2820878537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The square root of 2820878537 is about 53111.9434496611. The cubic root of 2820878537 is about 1412.9543435370.

The spelling of 2820878537 in words is "two billion, eight hundred twenty million, eight hundred seventy-eight thousand, five hundred thirty-seven".