85397003538 has 32 divisors (see below), whose sum is σ = 212937984000. Its totient is φ = 22181039760.

The previous prime is 85397003473. The next prime is 85397003597. The reversal of 85397003538 is 83530079358.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92420538 + ... + 92421461.

It is an arithmetic number, because the mean of its divisors is an integer number (6654312000).

Almost surely, 2^85397003538 is an apocalyptic number.

85397003538 is an abundant number, since it is smaller than the sum of its proper divisors (127540980462).

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

85397003538 is a wasteful number, since it uses less digits than its factorization.

85397003538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184842022.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 85397003538 in words is "eighty-five billion, three hundred ninety-seven million, three thousand, five hundred thirty-eight".