85946693377 has 4 divisors (see below), whose sum is σ = 85947893460. Its totient is φ = 85945493296.

The previous prime is 85946693341. The next prime is 85946693381. The reversal of 85946693377 is 77339664958.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52852170816 + 33094522561 = 229896^2 + 181919^2 .

It is a cyclic number.

It is not a de Polignac number, because 85946693377 - 2³⁵ = 51586955009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85946693387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485302 + ... + 638287.

It is an arithmetic number, because the mean of its divisors is an integer number (21486973365).

Almost surely, 2^85946693377 is an apocalyptic number.

It is an amenable number.

85946693377 is a deficient number, since it is larger than the sum of its proper divisors (1200083).

85946693377 is a wasteful number, since it uses less digits than its factorization.

85946693377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200082.

The product of its digits is 205752960, while the sum is 67.

The spelling of 85946693377 in words is "eighty-five billion, nine hundred forty-six million, six hundred ninety-three thousand, three hundred seventy-seven".