10878661193677 has 2 divisors, whose sum is σ = 10878661193678. Its totient is φ = 10878661193676.

The previous prime is 10878661193657. The next prime is 10878661193717. The reversal of 10878661193677 is 77639116687801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5984217342756 + 4894443850921 = 2446266^2 + 2212339^2 .

It is a cyclic number.

It is not a de Polignac number, because 10878661193677 - 2⁷ = 10878661193549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10878661193657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5439330596838 + 5439330596839.

It is an arithmetic number, because the mean of its divisors is an integer number (5439330596839).

Almost surely, 2^{10878661193677} is an apocalyptic number.

It is an amenable number.

10878661193677 is a deficient number, since it is larger than the sum of its proper divisors (1).

10878661193677 is an equidigital number, since it uses as much as digits as its factorization.

10878661193677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128024064, while the sum is 70.

The spelling of 10878661193677 in words is "ten trillion, eight hundred seventy-eight billion, six hundred sixty-one million, one hundred ninety-three thousand, six hundred seventy-seven".