85323578404 has 9 divisors (see below), whose sum is σ = 149317284571. Its totient is φ = 42661497100.

The previous prime is 85323578401. The next prime is 85323578419. The reversal of 85323578404 is 40487532358.

The square root of 85323578404 is 292102.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×85323578404² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85323578401) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 511179 + ... + 657229.

Almost surely, 2^85323578404 is an apocalyptic number.

85323578404 is the 292102-nd square number.

It is an amenable number.

85323578404 is a deficient number, since it is larger than the sum of its proper divisors (63993706167).

85323578404 is an frugal number, since it uses more digits than its factorization.

85323578404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292106 (or 146053 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 49.

Multiplying 85323578404 by its sum of digits (49), we get a square (4180855341796 = 2044714²).

The spelling of 85323578404 in words is "eighty-five billion, three hundred twenty-three million, five hundred seventy-eight thousand, four hundred four".