85398207570 has 48 divisors (see below), whose sum is σ = 239114984472. Its totient is φ = 21021096960.

The previous prime is 85398207547. The next prime is 85398207577. The reversal of 85398207570 is 7570289358.

It can be written as a sum of positive squares in 4 ways, for example, as 73164299121 + 12233908449 = 270489^2 + 110607^2 .

It is not an unprimeable number, because it can be changed into a prime (85398207577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36493791 + ... + 36496130.

Almost surely, 2^85398207570 is an apocalyptic number.

85398207570 is an abundant number, since it is smaller than the sum of its proper divisors (153716776902).

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

85398207570 is a wasteful number, since it uses less digits than its factorization.

85398207570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72989947 (or 72989944 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 85398207570 in words is "eighty-five billion, three hundred ninety-eight million, two hundred seven thousand, five hundred seventy".