85807428780844 has 12 divisors (see below), whose sum is σ = 150505057318000. Its totient is φ = 42805983832848.

The previous prime is 85807428780841. The next prime is 85807428780851. The reversal of 85807428780844 is 44808782470858.

It is not an unprimeable number, because it can be changed into a prime (85807428780841) 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, 24432637419 + ... + 24432640930.

Almost surely, 2^{85807428780844} is an apocalyptic number.

It is an amenable number.

85807428780844 is a deficient number, since it is larger than the sum of its proper divisors (64697628537156).

85807428780844 is a wasteful number, since it uses less digits than its factorization.

85807428780844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48865278792 (or 48865278790 counting only the distinct ones).

The product of its (nonzero) digits is 1027604480, while the sum is 73.

The spelling of 85807428780844 in words is "eighty-five trillion, eight hundred seven billion, four hundred twenty-eight million, seven hundred eighty thousand, eight hundred forty-four".