10643642868936 has 256 divisors, whose sum is σ = 34926059520000. Its totient is φ = 2618701989120.

The previous prime is 10643642868889. The next prime is 10643642868959. The reversal of 10643642868936 is 63986824634601.

It is a super-2 number, since 2×10643642868936² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 305421865 + ... + 305456711.

It is an arithmetic number, because the mean of its divisors is an integer number (136429920000).

Almost surely, 2^{10643642868936} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10643642868936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17463029760000).

10643642868936 is an abundant number, since it is smaller than the sum of its proper divisors (24282416651064).

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

10643642868936 is a wasteful number, since it uses less digits than its factorization.

10643642868936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43592 (or 43588 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 66.

The spelling of 10643642868936 in words is "ten trillion, six hundred forty-three billion, six hundred forty-two million, eight hundred sixty-eight thousand, nine hundred thirty-six".