10500007856 has 80 divisors (see below), whose sum is σ = 22137541440. Its totient is φ = 4824368640.

The previous prime is 10500007853. The next prime is 10500007883. The reversal of 10500007856 is 65870000501.

It is a super-2 number, since 2×10500007856² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10500007853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9877181 + ... + 9878243.

It is an arithmetic number, because the mean of its divisors is an integer number (276719268).

Almost surely, 2^10500007856 is an apocalyptic number.

10500007856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10500007856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11068770720).

10500007856 is an abundant number, since it is smaller than the sum of its proper divisors (11637533584).

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

10500007856 is a wasteful number, since it uses less digits than its factorization.

10500007856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 10500007856 in words is "ten billion, five hundred million, seven thousand, eight hundred fifty-six".