85403808143 has 4 divisors (see below), whose sum is σ = 88158769728. Its totient is φ = 82648846560.

The previous prime is 85403808137. The next prime is 85403808181. The reversal of 85403808143 is 34180830458.

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

It is a cyclic number.

It is not a de Polignac number, because 85403808143 - 2⁶ = 85403808079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85403808094 and 85403808103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85403808043) 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, 1377480746 + ... + 1377480807.

It is an arithmetic number, because the mean of its divisors is an integer number (22039692432).

Almost surely, 2^85403808143 is an apocalyptic number.

85403808143 is a deficient number, since it is larger than the sum of its proper divisors (2754961585).

85403808143 is a wasteful number, since it uses less digits than its factorization.

85403808143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754961584.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 85403808143 in words is "eighty-five billion, four hundred three million, eight hundred eight thousand, one hundred forty-three".