85447976472 has 24 divisors (see below), whose sum is σ = 231421603140. Its totient is φ = 28482658800.

The previous prime is 85447976429. The next prime is 85447976477. The reversal of 85447976472 is 27467974458.

85447976472 is a `hidden beast` number, since 8 + 54 + 47 + 9 + 76 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85447976477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 593388654 + ... + 593388797.

Almost surely, 2^85447976472 is an apocalyptic number.

It is an amenable number.

85447976472 is an abundant number, since it is smaller than the sum of its proper divisors (145973626668).

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

85447976472 is a wasteful number, since it uses less digits than its factorization.

85447976472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186777463 (or 1186777456 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 63.

The spelling of 85447976472 in words is "eighty-five billion, four hundred forty-seven million, nine hundred seventy-six thousand, four hundred seventy-two".