10978047281 has 2 divisors, whose sum is σ = 10978047282. Its totient is φ = 10978047280.

The previous prime is 10978047253. The next prime is 10978047319. The reversal of 10978047281 is 18274087901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9328469056 + 1649578225 = 96584^2 + 40615^2 .

It is a cyclic number.

It is not a de Polignac number, because 10978047281 - 2³⁰ = 9904305457 is a prime.

It is a super-2 number, since 2×10978047281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10978047481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5489023640 + 5489023641.

It is an arithmetic number, because the mean of its divisors is an integer number (5489023641).

Almost surely, 2^10978047281 is an apocalyptic number.

It is an amenable number.

10978047281 is a deficient number, since it is larger than the sum of its proper divisors (1).

10978047281 is an equidigital number, since it uses as much as digits as its factorization.

10978047281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 47.

The spelling of 10978047281 in words is "ten billion, nine hundred seventy-eight million, forty-seven thousand, two hundred eighty-one".