10878304861 has 2 divisors, whose sum is σ = 10878304862. Its totient is φ = 10878304860.

The previous prime is 10878304847. The next prime is 10878304873. The reversal of 10878304861 is 16840387801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7924382361 + 2953922500 = 89019^2 + 54350^2 .

It is a cyclic number.

It is not a de Polignac number, because 10878304861 - 2³¹ = 8730821213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10878304361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5439152430 + 5439152431.

It is an arithmetic number, because the mean of its divisors is an integer number (5439152431).

Almost surely, 2^10878304861 is an apocalyptic number.

It is an amenable number.

10878304861 is a deficient number, since it is larger than the sum of its proper divisors (1).

10878304861 is an equidigital number, since it uses as much as digits as its factorization.

10878304861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 10878304861 in words is "ten billion, eight hundred seventy-eight million, three hundred four thousand, eight hundred sixty-one".