85133469450 has 96 divisors (see below), whose sum is σ = 221012140032. Its totient is φ = 21660408000.

The previous prime is 85133469413. The next prime is 85133469479. The reversal of 85133469450 is 5496433158.

It is a self number, because there is not a number n which added to its sum of digits gives 85133469450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201219 + ... + 459081.

It is an arithmetic number, because the mean of its divisors is an integer number (2302209792).

Almost surely, 2^85133469450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85133469450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110506070016).

85133469450 is an abundant number, since it is smaller than the sum of its proper divisors (135878670582).

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

85133469450 is a wasteful number, since it uses less digits than its factorization.

85133469450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257980 (or 257975 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 85133469450 in words is "eighty-five billion, one hundred thirty-three million, four hundred sixty-nine thousand, four hundred fifty".