85634573652 has 48 divisors (see below), whose sum is σ = 222137328000. Its totient is φ = 28529202240.

The previous prime is 85634573641. The next prime is 85634573653. The reversal of 85634573652 is 25637543658.

85634573652 is a `hidden beast` number, since 8 + 5 + 6 + 3 + 4 + 573 + 65 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85634573653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18777 + ... + 414272.

It is an arithmetic number, because the mean of its divisors is an integer number (4627861000).

Almost surely, 2^85634573652 is an apocalyptic number.

It is an amenable number.

85634573652 is an abundant number, since it is smaller than the sum of its proper divisors (136502754348).

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

85634573652 is a wasteful number, since it uses less digits than its factorization.

85634573652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434893 (or 434885 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 54.

The spelling of 85634573652 in words is "eighty-five billion, six hundred thirty-four million, five hundred seventy-three thousand, six hundred fifty-two".