10709729280 has 384 divisors, whose sum is σ = 38644678800. Its totient is φ = 2845310976.

The previous prime is 10709729263. The next prime is 10709729299. The reversal of 10709729280 is 8292790701.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×10709729280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39812986 + ... + 39813254.

Almost surely, 2^10709729280 is an apocalyptic number.

10709729280 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 10709729280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19322339400).

10709729280 is an abundant number, since it is smaller than the sum of its proper divisors (27934949520).

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

10709729280 is an frugal number, since it uses more digits than its factorization.

10709729280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 10709729280 in words is "ten billion, seven hundred nine million, seven hundred twenty-nine thousand, two hundred eighty".