2878378201 has 2 divisors, whose sum is σ = 2878378202. Its totient is φ = 2878378200.

The previous prime is 2878378187. The next prime is 2878378253. The reversal of 2878378201 is 1028738782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2846115801 + 32262400 = 53349^2 + 5680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878378201 - 2⁵ = 2878378169 is a prime.

It is a super-2 number, since 2×2878378201² = 16570122135983992802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2878379201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439189100 + 1439189101.

It is an arithmetic number, because the mean of its divisors is an integer number (1439189101).

Almost surely, 2^2878378201 is an apocalyptic number.

It is an amenable number.

2878378201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878378201 is an equidigital number, since it uses as much as digits as its factorization.

2878378201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 2878378201 is about 53650.5191121204. The cubic root of 2878378201 is about 1422.4902084094.

The spelling of 2878378201 in words is "two billion, eight hundred seventy-eight million, three hundred seventy-eight thousand, two hundred one".