85517061377885 has 8 divisors (see below), whose sum is σ = 102831193314816. Its totient is φ = 68273169328080.

The previous prime is 85517061377857. The next prime is 85517061377897. The reversal of 85517061377885 is 58877316071558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85517061377885 - 2⁶ = 85517061377821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17559969101 + ... + 17559973970.

It is an arithmetic number, because the mean of its divisors is an integer number (12853899164352).

Almost surely, 2^{85517061377885} is an apocalyptic number.

It is an amenable number.

85517061377885 is a deficient number, since it is larger than the sum of its proper divisors (17314131936931).

85517061377885 is a wasteful number, since it uses less digits than its factorization.

85517061377885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35119943563.

The product of its (nonzero) digits is 395136000, while the sum is 71.

The spelling of 85517061377885 in words is "eighty-five trillion, five hundred seventeen billion, sixty-one million, three hundred seventy-seven thousand, eight hundred eighty-five".