85392384791 has 16 divisors (see below), whose sum is σ = 98164765440. Its totient is φ = 72763608960.

The previous prime is 85392384683. The next prime is 85392384793. The reversal of 85392384791 is 19748329358.

It is not a de Polignac number, because 85392384791 - 2¹⁴ = 85392368407 is a prime.

It is a super-2 number, since 2×85392384791² (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 85392384791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85392384793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5639711 + ... + 5654831.

It is an arithmetic number, because the mean of its divisors is an integer number (6135297840).

Almost surely, 2^85392384791 is an apocalyptic number.

85392384791 is a deficient number, since it is larger than the sum of its proper divisors (12772380649).

85392384791 is a wasteful number, since it uses less digits than its factorization.

85392384791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19814.

The product of its digits is 13063680, while the sum is 59.

The spelling of 85392384791 in words is "eighty-five billion, three hundred ninety-two million, three hundred eighty-four thousand, seven hundred ninety-one".