85482052474640 has 80 divisors (see below), whose sum is σ = 211032838913328. Its totient is φ = 32090312736768.

The previous prime is 85482052474639. The next prime is 85482052474727. The reversal of 85482052474640 is 4647425028458.

It can be written as a sum of positive squares in 8 ways, for example, as 10676713090576 + 74805339384064 = 3267524^2 + 8649008^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 85482052474640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88548887 + ... + 89509046.

Almost surely, 2^{85482052474640} is an apocalyptic number.

85482052474640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85482052474640 is an abundant number, since it is smaller than the sum of its proper divisors (125550786438688).

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

85482052474640 is a wasteful number, since it uses less digits than its factorization.

85482052474640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178058316 (or 178058310 counting only the distinct ones).

The product of its (nonzero) digits is 68812800, while the sum is 59.

The spelling of 85482052474640 in words is "eighty-five trillion, four hundred eighty-two billion, fifty-two million, four hundred seventy-four thousand, six hundred forty".