85428580744 has 32 divisors (see below), whose sum is σ = 182647082520. Its totient is φ = 37109246976.

The previous prime is 85428580733. The next prime is 85428580751. The reversal of 85428580744 is 44708582458.

It can be written as a sum of positive squares in 4 ways, for example, as 63690616900 + 21737963844 = 252370^2 + 147438^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24157899 + ... + 24161434.

Almost surely, 2^85428580744 is an apocalyptic number.

It is an amenable number.

85428580744 is an abundant number, since it is smaller than the sum of its proper divisors (97218501776).

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

85428580744 is a wasteful number, since it uses less digits than its factorization.

85428580744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48319369 (or 48319365 counting only the distinct ones).

The product of its (nonzero) digits is 11468800, while the sum is 55.

The spelling of 85428580744 in words is "eighty-five billion, four hundred twenty-eight million, five hundred eighty thousand, seven hundred forty-four".