85461009252 has 24 divisors (see below), whose sum is σ = 199671078432. Its totient is φ = 28449566400.

The previous prime is 85461009241. The next prime is 85461009253. The reversal of 85461009252 is 25290016458.

It is not an unprimeable number, because it can be changed into a prime (85461009253) 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, 4670074 + ... + 4688337.

It is an arithmetic number, because the mean of its divisors is an integer number (8319628268).

Almost surely, 2^85461009252 is an apocalyptic number.

It is an amenable number.

85461009252 is an abundant number, since it is smaller than the sum of its proper divisors (114210069180).

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

85461009252 is a wasteful number, since it uses less digits than its factorization.

85461009252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9359179 (or 9359177 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 85461009252 in words is "eighty-five billion, four hundred sixty-one million, nine thousand, two hundred fifty-two".