85420784103 has 16 divisors (see below), whose sum is σ = 116885423616. Its totient is φ = 55469795040.

The previous prime is 85420784083. The next prime is 85420784129. The reversal of 85420784103 is 30148702458.

It is not a de Polignac number, because 85420784103 - 2¹² = 85420780007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85420784143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2247075 + ... + 2284772.

It is an arithmetic number, because the mean of its divisors is an integer number (7305338976).

Almost surely, 2^85420784103 is an apocalyptic number.

85420784103 is a deficient number, since it is larger than the sum of its proper divisors (31464639513).

85420784103 is a wasteful number, since it uses less digits than its factorization.

85420784103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532014.

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 85420784103 in words is "eighty-five billion, four hundred twenty million, seven hundred eighty-four thousand, one hundred three".