10621385280 has 896 divisors, whose sum is σ = 44031651840. Its totient is φ = 2384363520.

The previous prime is 10621385233. The next prime is 10621385293. The reversal of 10621385280 is 8258312601.

It is a happy number.

10621385280 is a `hidden beast` number, since 1 + 0 + 621 + 3 + 8 + 5 + 28 + 0 = 666.

It is a super-2 number, since 2×10621385280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 93994504 + ... + 93994616.

Almost surely, 2^10621385280 is an apocalyptic number.

10621385280 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 10621385280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22015825920).

10621385280 is an abundant number, since it is smaller than the sum of its proper divisors (33410266560).

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

10621385280 is a wasteful number, since it uses less digits than its factorization.

10621385280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

Adding to 10621385280 its reverse (8258312601), we get a palindrome (18879697881).

The spelling of 10621385280 in words is "ten billion, six hundred twenty-one million, three hundred eighty-five thousand, two hundred eighty".