85210820953 has 8 divisors (see below), whose sum is σ = 85310575488. Its totient is φ = 85111125264.

The previous prime is 85210820939. The next prime is 85210820983. The reversal of 85210820953 is 35902801258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85210820953 - 2⁵ = 85210820921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85210820983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3307026 + ... + 3332692.

It is an arithmetic number, because the mean of its divisors is an integer number (10663821936).

Almost surely, 2^85210820953 is an apocalyptic number.

It is an amenable number.

85210820953 is a deficient number, since it is larger than the sum of its proper divisors (99754535).

85210820953 is a wasteful number, since it uses less digits than its factorization.

85210820953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29423.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 85210820953 in words is "eighty-five billion, two hundred ten million, eight hundred twenty thousand, nine hundred fifty-three".