10931785919 has 2 divisors, whose sum is σ = 10931785920. Its totient is φ = 10931785918.

The previous prime is 10931785889. The next prime is 10931785937. The reversal of 10931785919 is 91958713901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10931785919 - 2¹⁶ = 10931720383 is a prime.

It is a super-2 number, since 2×10931785919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10931785939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5465892959 + 5465892960.

It is an arithmetic number, because the mean of its divisors is an integer number (5465892960).

Almost surely, 2^10931785919 is an apocalyptic number.

10931785919 is a deficient number, since it is larger than the sum of its proper divisors (1).

10931785919 is an equidigital number, since it uses as much as digits as its factorization.

10931785919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 53.

The spelling of 10931785919 in words is "ten billion, nine hundred thirty-one million, seven hundred eighty-five thousand, nine hundred nineteen".