85905207077 has 8 divisors (see below), whose sum is σ = 86538038400. Its totient is φ = 85274363664.

The previous prime is 85905206999. The next prime is 85905207079. The reversal of 85905207077 is 77070250958.

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

It is a cyclic number.

It is not a de Polignac number, because 85905207077 - 2³⁰ = 84831465253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85905207079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410177 + ... + 583142.

It is an arithmetic number, because the mean of its divisors is an integer number (10817254800).

Almost surely, 2^85905207077 is an apocalyptic number.

It is an amenable number.

85905207077 is a deficient number, since it is larger than the sum of its proper divisors (632831323).

85905207077 is a wasteful number, since it uses less digits than its factorization.

85905207077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993955.

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 85905207077 in words is "eighty-five billion, nine hundred five million, two hundred seven thousand, seventy-seven".