885961681920 has 528 divisors, whose sum is σ = 3515559198528. Its totient is φ = 202091397120.

The previous prime is 885961681909. The next prime is 885961682077. The reversal of 885961681920 is 29186169588.

885961681920 is a `hidden beast` number, since 8 + 8 + 5 + 9 + 616 + 8 + 1 + 9 + 2 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174502422 + ... + 174507498.

Almost surely, 2^885961681920 is an apocalyptic number.

885961681920 is a gapful number since it is divisible by the number (80) 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 885961681920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757779599264).

885961681920 is an abundant number, since it is smaller than the sum of its proper divisors (2629597516608).

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

885961681920 is a wasteful number, since it uses less digits than its factorization.

885961681920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656 (or 5635 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 885961681920 in words is "eight hundred eighty-five billion, nine hundred sixty-one million, six hundred eighty-one thousand, nine hundred twenty".