85811260378054 has 4 divisors (see below), whose sum is σ = 128716890567084. Its totient is φ = 42905630189026.

The previous prime is 85811260378009. The next prime is 85811260378061. The reversal of 85811260378054 is 45087306211858.

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

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 85811260378054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21452815094512 + ... + 21452815094515.

It is an arithmetic number, because the mean of its divisors is an integer number (32179222641771).

Almost surely, 2^{85811260378054} is an apocalyptic number.

85811260378054 is a deficient number, since it is larger than the sum of its proper divisors (42905630189030).

85811260378054 is a wasteful number, since it uses less digits than its factorization.

85811260378054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42905630189029.

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 85811260378054 in words is "eighty-five trillion, eight hundred eleven billion, two hundred sixty million, three hundred seventy-eight thousand, fifty-four".