805869768487 has 16 divisors (see below), whose sum is σ = 946256980032. Its totient is φ = 671898286080.

The previous prime is 805869768467. The next prime is 805869768491. The reversal of 805869768487 is 784867968508.

It is not a de Polignac number, because 805869768487 - 2¹⁵ = 805869735719 is a prime.

It is a super-2 number, since 2×805869768487² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805869768427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4069318 + ... + 4262755.

It is an arithmetic number, because the mean of its divisors is an integer number (59141061252).

Almost surely, 2^805869768487 is an apocalyptic number.

805869768487 is a deficient number, since it is larger than the sum of its proper divisors (140387211545).

805869768487 is a wasteful number, since it uses less digits than its factorization.

805869768487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332458.

The product of its (nonzero) digits is 1300561920, while the sum is 76.

The spelling of 805869768487 in words is "eight hundred five billion, eight hundred sixty-nine million, seven hundred sixty-eight thousand, four hundred eighty-seven".