85783935516 has 24 divisors (see below), whose sum is σ = 202411535760. Its totient is φ = 28273356672.

The previous prime is 85783935511. The next prime is 85783935533. The reversal of 85783935516 is 61553938758.

It is a super-2 number, since 2×85783935516² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85783935516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85783935511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40159951 + ... + 40162086.

It is an arithmetic number, because the mean of its divisors is an integer number (8433813990).

Almost surely, 2^85783935516 is an apocalyptic number.

It is an amenable number.

85783935516 is an abundant number, since it is smaller than the sum of its proper divisors (116627600244).

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

85783935516 is a wasteful number, since it uses less digits than its factorization.

85783935516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80322133 (or 80322131 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 60.

The spelling of 85783935516 in words is "eighty-five billion, seven hundred eighty-three million, nine hundred thirty-five thousand, five hundred sixteen".