8725651620 has 96 divisors (see below), whose sum is σ = 28076595456. Its totient is φ = 1983398400.

The previous prime is 8725651607. The next prime is 8725651667. The reversal of 8725651620 is 261565278.

It is a super-2 number, since 2×8725651620² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18630 + ... + 133410.

It is an arithmetic number, because the mean of its divisors is an integer number (292464536).

Almost surely, 2^8725651620 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 8725651620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14038297728).

8725651620 is an abundant number, since it is smaller than the sum of its proper divisors (19350943836).

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

8725651620 is a wasteful number, since it uses less digits than its factorization.

8725651620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114981 (or 114979 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 8725651620 is about 93411.1964381144. The cubic root of 8725651620 is about 2058.7295100572.

The spelling of 8725651620 in words is "eight billion, seven hundred twenty-five million, six hundred fifty-one thousand, six hundred twenty".