8855620740 has 72 divisors (see below), whose sum is σ = 26924323608. Its totient is φ = 2356024320.

The previous prime is 8855620721. The next prime is 8855620769. The reversal of 8855620740 is 470265588.

8855620740 is a `hidden beast` number, since 8 + 8 + 556 + 20 + 74 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 82301184 + 8773319556 = 9072^2 + 93666^2 .

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

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, 21130 + ... + 134750.

It is an arithmetic number, because the mean of its divisors is an integer number (373948939).

Almost surely, 2^8855620740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8855620740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13462161804).

8855620740 is an abundant number, since it is smaller than the sum of its proper divisors (18068702868).

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

8855620740 is a wasteful number, since it uses less digits than its factorization.

8855620740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114069 (or 114064 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 8855620740 is about 94104.3077653728. The cubic root of 8855620740 is about 2068.9008096872.

The spelling of 8855620740 in words is "eight billion, eight hundred fifty-five million, six hundred twenty thousand, seven hundred forty".