10646254764389 has 4 divisors (see below), whose sum is σ = 10646469677100. Its totient is φ = 10646039851680.

The previous prime is 10646254764371. The next prime is 10646254764401. The reversal of 10646254764389 is 98346745264601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9438965844100 + 1207288920289 = 3072290^2 + 1098767^2 .

It is a cyclic number.

It is not a de Polignac number, because 10646254764389 - 2³⁶ = 10577535287653 is a prime.

It is a super-2 number, since 2×10646254764389² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10646254764349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107382032 + ... + 107481129.

It is an arithmetic number, because the mean of its divisors is an integer number (2661617419275).

It is a 1-persistent number, because it is pandigital, but 2⋅10646254764389 = 21292509528778 is not.

Almost surely, 2^{10646254764389} is an apocalyptic number.

It is an amenable number.

10646254764389 is a deficient number, since it is larger than the sum of its proper divisors (214912711).

10646254764389 is an equidigital number, since it uses as much as digits as its factorization.

10646254764389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214912710.

The product of its (nonzero) digits is 209018880, while the sum is 65.

The spelling of 10646254764389 in words is "ten trillion, six hundred forty-six billion, two hundred fifty-four million, seven hundred sixty-four thousand, three hundred eighty-nine".