805296812880 has 320 divisors, whose sum is σ = 2937987956736. Its totient is φ = 178635264000.

The previous prime is 805296812863. The next prime is 805296812909. The reversal of 805296812880 is 88218692508.

It is a self number, because there is not a number n which added to its sum of digits gives 805296812880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13125475 + ... + 13186685.

Almost surely, 2^805296812880 is an apocalyptic number.

805296812880 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 805296812880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468993978368).

805296812880 is an abundant number, since it is smaller than the sum of its proper divisors (2132691143856).

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

805296812880 is a wasteful number, since it uses less digits than its factorization.

805296812880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61466 (or 61460 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 57.

The spelling of 805296812880 in words is "eight hundred five billion, two hundred ninety-six million, eight hundred twelve thousand, eight hundred eighty".