85801723600 has 30 divisors (see below), whose sum is σ = 206138641910. Its totient is φ = 34320689280.

The previous prime is 85801723541. The next prime is 85801723627. The reversal of 85801723600 is 632710858.

It can be written as a sum of positive squares in 3 ways, for example, as 4988879424 + 80812844176 = 70632^2 + 284276^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107251755 + ... + 107252554.

Almost surely, 2^85801723600 is an apocalyptic number.

85801723600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85801723600 is an abundant number, since it is smaller than the sum of its proper divisors (120336918310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85801723600 is a wasteful number, since it uses less digits than its factorization.

85801723600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214504327 (or 214504316 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 85801723600 in words is "eighty-five billion, eight hundred one million, seven hundred twenty-three thousand, six hundred".