85862461787787 has 4 divisors (see below), whose sum is σ = 114483282383720. Its totient is φ = 57241641191856.

The previous prime is 85862461787761. The next prime is 85862461787881. The reversal of 85862461787787 is 78778716426858.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85862461787787 - 2⁶ = 85862461787723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85862461780787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14310410297962 + ... + 14310410297967.

It is an arithmetic number, because the mean of its divisors is an integer number (28620820595930).

Almost surely, 2^{85862461787787} is an apocalyptic number.

85862461787787 is a deficient number, since it is larger than the sum of its proper divisors (28620820595933).

85862461787787 is a wasteful number, since it uses less digits than its factorization.

85862461787787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28620820595932.

The product of its digits is 14161674240, while the sum is 84.

The spelling of 85862461787787 in words is "eighty-five trillion, eight hundred sixty-two billion, four hundred sixty-one million, seven hundred eighty-seven thousand, seven hundred eighty-seven".