2878379461 has 2 divisors, whose sum is σ = 2878379462. Its totient is φ = 2878379460.

The previous prime is 2878379417. The next prime is 2878379477. The reversal of 2878379461 is 1649738782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2509509025 + 368870436 = 50095^2 + 19206^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878379461 - 2⁹ = 2878378949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2878379761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439189730 + 1439189731.

It is an arithmetic number, because the mean of its divisors is an integer number (1439189731).

Almost surely, 2^2878379461 is an apocalyptic number.

It is an amenable number.

2878379461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878379461 is an equidigital number, since it uses as much as digits as its factorization.

2878379461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The square root of 2878379461 is about 53650.5308547828. The cubic root of 2878379461 is about 1422.4904159728.

The spelling of 2878379461 in words is "two billion, eight hundred seventy-eight million, three hundred seventy-nine thousand, four hundred sixty-one".