10938621807 has 16 divisors (see below), whose sum is σ = 16387452000. Its totient is φ = 7210475712.

The previous prime is 10938621719. The next prime is 10938621833. The reversal of 10938621807 is 70812683901.

10938621807 is a `hidden beast` number, since 10 + 9 + 3 + 8 + 621 + 8 + 0 + 7 = 666.

It is not a de Polignac number, because 10938621807 - 2¹⁹ = 10938097519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10938621847) 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 15 ways as a sum of consecutive naturals, for example, 2273632 + ... + 2278437.

It is an arithmetic number, because the mean of its divisors is an integer number (1024215750).

Almost surely, 2^10938621807 is an apocalyptic number.

10938621807 is a deficient number, since it is larger than the sum of its proper divisors (5448830193).

10938621807 is an equidigital number, since it uses as much as digits as its factorization.

10938621807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552167 (or 4552161 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 10938621807 in words is "ten billion, nine hundred thirty-eight million, six hundred twenty-one thousand, eight hundred seven".