85224748793 has 4 divisors (see below), whose sum is σ = 87528120420. Its totient is φ = 82921377168.

The previous prime is 85224748759. The next prime is 85224748853. The reversal of 85224748793 is 39784742258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58916881984 + 26307866809 = 242728^2 + 162197^2 .

It is a cyclic number.

It is not a de Polignac number, because 85224748793 - 2⁸ = 85224748537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85224744793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151685758 + ... + 1151685831.

It is an arithmetic number, because the mean of its divisors is an integer number (21882030105).

Almost surely, 2^85224748793 is an apocalyptic number.

It is an amenable number.

85224748793 is a deficient number, since it is larger than the sum of its proper divisors (2303371627).

85224748793 is a wasteful number, since it uses less digits than its factorization.

85224748793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303371626.

The product of its digits is 27095040, while the sum is 59.

The spelling of 85224748793 in words is "eighty-five billion, two hundred twenty-four million, seven hundred forty-eight thousand, seven hundred ninety-three".