85758909953 has 4 divisors (see below), whose sum is σ = 85766491140. Its totient is φ = 85751328768.

The previous prime is 85758909947. The next prime is 85758909959. The reversal of 85758909953 is 35990985758.

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

It is an interprime number because it is at equal distance from previous prime (85758909947) and next prime (85758909959).

It can be written as a sum of positive squares in 2 ways, for example, as 46075481104 + 39683428849 = 214652^2 + 199207^2 .

It is a cyclic number.

It is not a de Polignac number, because 85758909953 - 2⁸ = 85758909697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85758909959) 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, 3773600 + ... + 3796257.

It is an arithmetic number, because the mean of its divisors is an integer number (21441622785).

Almost surely, 2^85758909953 is an apocalyptic number.

It is an amenable number.

85758909953 is a deficient number, since it is larger than the sum of its proper divisors (7581187).

85758909953 is a wasteful number, since it uses less digits than its factorization.

85758909953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581186.

The product of its (nonzero) digits is 122472000, while the sum is 68.

The spelling of 85758909953 in words is "eighty-five billion, seven hundred fifty-eight million, nine hundred nine thousand, nine hundred fifty-three".