798878873520 has 720 divisors, whose sum is σ = 3408474468672. Its totient is φ = 166173880320.

The previous prime is 798878873503. The next prime is 798878873539. The reversal of 798878873520 is 25378878897.

798878873520 is a `hidden beast` number, since 7 + 98 + 8 + 7 + 8 + 8 + 7 + 3 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 32551174 + ... + 32575706.

Almost surely, 2^798878873520 is an apocalyptic number.

798878873520 is a gapful number since it is divisible by the number (70) 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 798878873520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704237234336).

798878873520 is an abundant number, since it is smaller than the sum of its proper divisors (2609595595152).

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

798878873520 is a wasteful number, since it uses less digits than its factorization.

798878873520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24650 (or 24634 counting only the distinct ones).

The product of its (nonzero) digits is 379330560, while the sum is 72.

The spelling of 798878873520 in words is "seven hundred ninety-eight billion, eight hundred seventy-eight million, eight hundred seventy-three thousand, five hundred twenty".