800126812880 has 40 divisors (see below), whose sum is σ = 1958205098400. Its totient is φ = 303205949568.

The previous prime is 800126812873. The next prime is 800126812931. The reversal of 800126812880 is 88218621008.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 263198090 + ... + 263201129.

It is an arithmetic number, because the mean of its divisors is an integer number (48955127460).

Almost surely, 2^800126812880 is an apocalyptic number.

800126812880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

800126812880 is an abundant number, since it is smaller than the sum of its proper divisors (1158078285520).

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

800126812880 is a wasteful number, since it uses less digits than its factorization.

800126812880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526399251 (or 526399245 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 44.

The spelling of 800126812880 in words is "eight hundred billion, one hundred twenty-six million, eight hundred twelve thousand, eight hundred eighty".