873566247840 has 384 divisors, whose sum is σ = 3257517441024. Its totient is φ = 193989120000.

The previous prime is 873566247833. The next prime is 873566247857. The reversal of 873566247840 is 48742665378.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8943265 + ... + 9040415.

It is an arithmetic number, because the mean of its divisors is an integer number (8483118336).

Almost surely, 2^873566247840 is an apocalyptic number.

873566247840 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 873566247840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1628758720512).

873566247840 is an abundant number, since it is smaller than the sum of its proper divisors (2383951193184).

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

873566247840 is a wasteful number, since it uses less digits than its factorization.

873566247840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97324 (or 97316 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 60.

The spelling of 873566247840 in words is "eight hundred seventy-three billion, five hundred sixty-six million, two hundred forty-seven thousand, eight hundred forty".