10781866313 has 4 divisors (see below), whose sum is σ = 10864170768. Its totient is φ = 10699561860.

The previous prime is 10781866307. The next prime is 10781866339. The reversal of 10781866313 is 31366818701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10781866313 - 2²⁸ = 10513430857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10781866013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41152031 + ... + 41152292.

It is an arithmetic number, because the mean of its divisors is an integer number (2716042692).

Almost surely, 2^10781866313 is an apocalyptic number.

It is an amenable number.

10781866313 is a deficient number, since it is larger than the sum of its proper divisors (82304455).

10781866313 is an equidigital number, since it uses as much as digits as its factorization.

10781866313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82304454.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 10781866313 in words is "ten billion, seven hundred eighty-one million, eight hundred sixty-six thousand, three hundred thirteen".