2878145801 has 2 divisors, whose sum is σ = 2878145802. Its totient is φ = 2878145800.

The previous prime is 2878145797. The next prime is 2878145807. The reversal of 2878145801 is 1085418782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2714305801 + 163840000 = 52099^2 + 12800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878145801 - 2² = 2878145797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2878145807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439072900 + 1439072901.

It is an arithmetic number, because the mean of its divisors is an integer number (1439072901).

Almost surely, 2^2878145801 is an apocalyptic number.

It is an amenable number.

2878145801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878145801 is an equidigital number, since it uses as much as digits as its factorization.

2878145801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 143360, while the sum is 44.

The square root of 2878145801 is about 53648.3531993294. The cubic root of 2878145801 is about 1422.4519234681.

The spelling of 2878145801 in words is "two billion, eight hundred seventy-eight million, one hundred forty-five thousand, eight hundred one".