85428184084 has 12 divisors (see below), whose sum is σ = 149506143444. Its totient is φ = 42712143104.

The previous prime is 85428184067. The next prime is 85428184091. The reversal of 85428184084 is 48048182458.

It can be written as a sum of positive squares in 2 ways, for example, as 72372836484 + 13055347600 = 269022^2 + 114260^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386287 + ... + 565750.

It is an arithmetic number, because the mean of its divisors is an integer number (12458845287).

Almost surely, 2^85428184084 is an apocalyptic number.

It is an amenable number.

85428184084 is a deficient number, since it is larger than the sum of its proper divisors (64077959360).

85428184084 is a wasteful number, since it uses less digits than its factorization.

85428184084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974474 (or 974472 counting only the distinct ones).

The product of its (nonzero) digits is 2621440, while the sum is 52.

The spelling of 85428184084 in words is "eighty-five billion, four hundred twenty-eight million, one hundred eighty-four thousand, eighty-four".