9626081840 has 40 divisors (see below), whose sum is σ = 22556889600. Its totient is φ = 3820110336.

The previous prime is 9626081837. The next prime is 9626081863. The reversal of 9626081840 is 481806269.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×9626081840² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9626081791 and 9626081800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463565 + ... + 483884.

It is an arithmetic number, because the mean of its divisors is an integer number (563922240).

Almost surely, 2^9626081840 is an apocalyptic number.

It is an amenable number.

9626081840 is an abundant number, since it is smaller than the sum of its proper divisors (12930807760).

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

9626081840 is a wasteful number, since it uses less digits than its factorization.

9626081840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947589 (or 947583 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 9626081840 is about 98112.5977639977. The cubic root of 9626081840 is about 2127.2401264459.

The spelling of 9626081840 in words is "nine billion, six hundred twenty-six million, eighty-one thousand, eight hundred forty".