805887197036880 has 640 divisors, whose sum is σ = 3029906168832000. Its totient is φ = 173089281024000.

The previous prime is 805887197036869. The next prime is 805887197036917. The reversal of 805887197036880 is 88630791788508.

805887197036880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (78) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 805887197036796 and 805887197036805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3185840646 + ... + 3186093594.

It is an arithmetic number, because the mean of its divisors is an integer number (4734228388800).

Almost surely, 2^{805887197036880} is an apocalyptic number.

805887197036880 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 805887197036880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514953084416000).

805887197036880 is an abundant number, since it is smaller than the sum of its proper divisors (2224018971795120).

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

805887197036880 is a wasteful number, since it uses less digits than its factorization.

805887197036880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253803 (or 253797 counting only the distinct ones).

The product of its (nonzero) digits is 1300561920, while the sum is 78.

The spelling of 805887197036880 in words is "eight hundred five trillion, eight hundred eighty-seven billion, one hundred ninety-seven million, thirty-six thousand, eight hundred eighty".