85851677873643 has 32 divisors (see below), whose sum is σ = 125352561388032. Its totient is φ = 51832414099200.

The previous prime is 85851677873623. The next prime is 85851677873657. The reversal of 85851677873643 is 34637877615858.

It is a happy number.

It is not a de Polignac number, because 85851677873643 - 2¹⁸ = 85851677611499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85851677873623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691281013 + ... + 691405193.

It is an arithmetic number, because the mean of its divisors is an integer number (3917267543376).

Almost surely, 2^{85851677873643} is an apocalyptic number.

85851677873643 is a deficient number, since it is larger than the sum of its proper divisors (39500883514389).

85851677873643 is a wasteful number, since it uses less digits than its factorization.

85851677873643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204115.

The product of its digits is 5689958400, while the sum is 78.

The spelling of 85851677873643 in words is "eighty-five trillion, eight hundred fifty-one billion, six hundred seventy-seven million, eight hundred seventy-three thousand, six hundred forty-three".