85463441851 has 4 divisors (see below), whose sum is σ = 88220327104. Its totient is φ = 82706556600.

The previous prime is 85463441839. The next prime is 85463441933. The reversal of 85463441851 is 15814436458.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85463441851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85463441795 and 85463441804.

It is not an unprimeable number, because it can be changed into a prime (85463441821) 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, 1378442580 + ... + 1378442641.

It is an arithmetic number, because the mean of its divisors is an integer number (22055081776).

Almost surely, 2^85463441851 is an apocalyptic number.

85463441851 is a deficient number, since it is larger than the sum of its proper divisors (2756885253).

85463441851 is a wasteful number, since it uses less digits than its factorization.

85463441851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756885252.

The product of its digits is 1843200, while the sum is 49.

The spelling of 85463441851 in words is "eighty-five billion, four hundred sixty-three million, four hundred forty-one thousand, eight hundred fifty-one".