85243677772 has 24 divisors (see below), whose sum is σ = 166707151632. Its totient is φ = 37802073600.

The previous prime is 85243677733. The next prime is 85243677781. The reversal of 85243677772 is 27777634258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23624493 + ... + 23628100.

It is an arithmetic number, because the mean of its divisors is an integer number (6946131318).

Almost surely, 2^85243677772 is an apocalyptic number.

85243677772 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

85243677772 is a deficient number, since it is larger than the sum of its proper divisors (81463473860).

85243677772 is a wasteful number, since it uses less digits than its factorization.

85243677772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47252649 (or 47252647 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 58.

The spelling of 85243677772 in words is "eighty-five billion, two hundred forty-three million, six hundred seventy-seven thousand, seven hundred seventy-two".