85238004100 has 36 divisors (see below), whose sum is σ = 185432465764. Its totient is φ = 34009303680.

The previous prime is 85238004091. The next prime is 85238004101. The reversal of 85238004100 is 140083258.

It can be written as a sum of positive squares in 6 ways, for example, as 5546972484 + 79691031616 = 74478^2 + 282296^2 .

It is not an unprimeable number, because it can be changed into a prime (85238004101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1033827 + ... + 1113226.

Almost surely, 2^85238004100 is an apocalyptic number.

It is an amenable number.

85238004100 is an abundant number, since it is smaller than the sum of its proper divisors (100194461664).

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

85238004100 is a wasteful number, since it uses less digits than its factorization.

85238004100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147464 (or 2147457 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 85238004100 its reverse (140083258), we get a palindrome (85378087358).

The spelling of 85238004100 in words is "eighty-five billion, two hundred thirty-eight million, four thousand, one hundred".