10491773668 has 6 divisors (see below), whose sum is σ = 18360603926. Its totient is φ = 5245886832.

The previous prime is 10491773653. The next prime is 10491773683. The reversal of 10491773668 is 86637719401.

10491773668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10491773653) and next prime (10491773683).

It can be written as a sum of positive squares in only one way, i.e., 10297784484 + 193989184 = 101478^2 + 13928^2 .

It is a super-2 number, since 2×10491773668² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1311471705 + ... + 1311471712.

Almost surely, 2^10491773668 is an apocalyptic number.

It is an amenable number.

10491773668 is a deficient number, since it is larger than the sum of its proper divisors (7868830258).

10491773668 is a wasteful number, since it uses less digits than its factorization.

10491773668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622943421 (or 2622943419 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 10491773668 in words is "ten billion, four hundred ninety-one million, seven hundred seventy-three thousand, six hundred sixty-eight".