85209263430 has 16 divisors (see below), whose sum is σ = 204502232304. Its totient is φ = 22722470240.

The previous prime is 85209263429. The next prime is 85209263437. The reversal of 85209263430 is 3436290258.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85209263437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420154361 + ... + 1420154420.

It is an arithmetic number, because the mean of its divisors is an integer number (12781389519).

Almost surely, 2^85209263430 is an apocalyptic number.

85209263430 is an abundant number, since it is smaller than the sum of its proper divisors (119292968874).

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

85209263430 is a wasteful number, since it uses less digits than its factorization.

85209263430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840308791.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 85209263430 in words is "eighty-five billion, two hundred nine million, two hundred sixty-three thousand, four hundred thirty".