800042087520 has 144 divisors (see below), whose sum is σ = 2940154740432. Its totient is φ = 196933432320.

The previous prime is 800042087503. The next prime is 800042087557. The reversal of 800042087520 is 25780240008.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21349926 + ... + 21387365.

It is an arithmetic number, because the mean of its divisors is an integer number (20417741253).

Almost surely, 2^800042087520 is an apocalyptic number.

800042087520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

800042087520 is an abundant number, since it is smaller than the sum of its proper divisors (2140112652912).

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

800042087520 is a wasteful number, since it uses less digits than its factorization.

800042087520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42737325 (or 42737314 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The spelling of 800042087520 in words is "eight hundred billion, forty-two million, eighty-seven thousand, five hundred twenty".