10398764823805 has 32 divisors (see below), whose sum is σ = 12685833468000. Its totient is φ = 8181999378432.

The previous prime is 10398764823793. The next prime is 10398764823823. The reversal of 10398764823805 is 50832846789301.

It can be written as a sum of positive squares in 16 ways, for example, as 6021070641369 + 4377694182436 = 2453787^2 + 2092294^2 .

It is a cyclic number.

It is not a de Polignac number, because 10398764823805 - 2³⁷ = 10261325870333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126070137 + ... + 126152593.

It is an arithmetic number, because the mean of its divisors is an integer number (396432295875).

It is a 1-persistent number, because it is pandigital, but 2⋅10398764823805 = 20797529647610 is not.

Almost surely, 2^{10398764823805} is an apocalyptic number.

It is an amenable number.

10398764823805 is a deficient number, since it is larger than the sum of its proper divisors (2287068644195).

10398764823805 is a wasteful number, since it uses less digits than its factorization.

10398764823805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84273.

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 10398764823805 in words is "ten trillion, three hundred ninety-eight billion, seven hundred sixty-four million, eight hundred twenty-three thousand, eight hundred five".