85520810719526 has 128 divisors (see below), whose sum is σ = 169507656170496. Its totient is φ = 31397596876800.

The previous prime is 85520810719517. The next prime is 85520810719549. The reversal of 85520810719526 is 62591701802558.

It is a happy number.

It is a super-2 number, since 2×85520810719526² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 869745401 + ... + 869843723.

It is an arithmetic number, because the mean of its divisors is an integer number (1324278563832).

Almost surely, 2^{85520810719526} is an apocalyptic number.

85520810719526 is a deficient number, since it is larger than the sum of its proper divisors (83986845450970).

85520810719526 is a wasteful number, since it uses less digits than its factorization.

85520810719526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102286.

The product of its (nonzero) digits is 12096000, while the sum is 59.

The spelling of 85520810719526 in words is "eighty-five trillion, five hundred twenty billion, eight hundred ten million, seven hundred nineteen thousand, five hundred twenty-six".