888902009856 has 891 divisors, whose sum is σ = 3173200567173. Its totient is φ = 238947287040.

The previous prime is 888902009851. The next prime is 888902009861. The reversal of 888902009856 is 658900209888.

The square root of 888902009856 is 942816.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (888902009851) and next prime (888902009861).

It can be written as a sum of positive squares in only one way, i.e., 28905440256 + 859996569600 = 170016^2 + 927360^2 .

It is a super-2 number, since 2×888902009856² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 888902009793 and 888902009802.

It is not an unprimeable number, because it can be changed into a prime (888902009851) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 14572164066 + ... + 14572164126.

Almost surely, 2^888902009856 is an apocalyptic number.

888902009856 is the 942816-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 888902009856

888902009856 is an abundant number, since it is smaller than the sum of its proper divisors (2284298557317).

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

888902009856 is a wasteful number, since it uses less digits than its factorization.

888902009856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 63.

The spelling of 888902009856 in words is "eight hundred eighty-eight billion, nine hundred two million, nine thousand, eight hundred fifty-six".