85124236450 has 24 divisors (see below), whose sum is σ = 172724815440. Its totient is φ = 30954267600.

The previous prime is 85124236429. The next prime is 85124236541. The reversal of 85124236450 is 5463242158.

It is a super-2 number, since 2×85124236450² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77385120 + ... + 77386219.

It is an arithmetic number, because the mean of its divisors is an integer number (7196867310).

Almost surely, 2^85124236450 is an apocalyptic number.

85124236450 is an abundant number, since it is smaller than the sum of its proper divisors (87600578990).

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

85124236450 is a wasteful number, since it uses less digits than its factorization.

85124236450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154771362 (or 154771357 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 85124236450 in words is "eighty-five billion, one hundred twenty-four million, two hundred thirty-six thousand, four hundred fifty".