10569979840 has 224 divisors, whose sum is σ = 30633863040. Its totient is φ = 3391094784.

The previous prime is 10569979837. The next prime is 10569979841. The reversal of 10569979840 is 4897996501.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×10569979840² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10569979841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7501056 + ... + 7502464.

Almost surely, 2^10569979840 is an apocalyptic number.

10569979840 is a gapful number since it is divisible by the number (10) 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 10569979840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15316931520).

10569979840 is an abundant number, since it is smaller than the sum of its proper divisors (20063883200).

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

10569979840 is a wasteful number, since it uses less digits than its factorization.

10569979840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 10569979840 in words is "ten billion, five hundred sixty-nine million, nine hundred seventy-nine thousand, eight hundred forty".