878490943488 has 114 divisors (see below), whose sum is σ = 2537864700774. Its totient is φ = 292829528064.

The previous prime is 878490943483. The next prime is 878490943489. The reversal of 878490943488 is 884349094878.

878490943488 is a `hidden beast` number, since 8 + 7 + 8 + 490 + 94 + 3 + 48 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 761165512704 + 117325430784 = 872448^2 + 342528^2 .

It is a super-2 number, since 2×878490943488² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (878490943483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2173120 + ... + 2545472.

Almost surely, 2^878490943488 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 878490943488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268932350387).

878490943488 is an abundant number, since it is smaller than the sum of its proper divisors (1659373757286).

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

878490943488 is an frugal number, since it uses more digits than its factorization.

878490943488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372395 (or 372358 counting only the distinct ones).

The product of its (nonzero) digits is 445906944, while the sum is 72.

The spelling of 878490943488 in words is "eight hundred seventy-eight billion, four hundred ninety million, nine hundred forty-three thousand, four hundred eighty-eight".