85258135526 has 8 divisors (see below), whose sum is σ = 128384819640. Its totient is φ = 42463195648.

The previous prime is 85258135517. The next prime is 85258135559. The reversal of 85258135526 is 62553185258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 82935416 + ... + 82936443.

It is an arithmetic number, because the mean of its divisors is an integer number (16048102455).

Almost surely, 2^85258135526 is an apocalyptic number.

85258135526 is a deficient number, since it is larger than the sum of its proper divisors (43126684114).

85258135526 is a wasteful number, since it uses less digits than its factorization.

85258135526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165872118.

The product of its digits is 2880000, while the sum is 50.

The spelling of 85258135526 in words is "eighty-five billion, two hundred fifty-eight million, one hundred thirty-five thousand, five hundred twenty-six".