10638993492008 has 64 divisors (see below), whose sum is σ = 23584597545600. Its totient is φ = 4402226062080.

The previous prime is 10638993491999. The next prime is 10638993492103. The reversal of 10638993492008 is 80029439983601.

It is a happy number.

It is a Cunningham number, because it is equal to 3261747²-1.

It is a super-2 number, since 2×10638993492008² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 91270643 + ... + 91387133.

It is an arithmetic number, because the mean of its divisors is an integer number (368509336650).

Almost surely, 2^{10638993492008} is an apocalyptic number.

It is an amenable number.

10638993492008 is an abundant number, since it is smaller than the sum of its proper divisors (12945604053592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10638993492008 is a wasteful number, since it uses less digits than its factorization.

10638993492008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172770 (or 172766 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 10638993492008 in words is "ten trillion, six hundred thirty-eight billion, nine hundred ninety-three million, four hundred ninety-two thousand, eight".