85428804704 has 24 divisors (see below), whose sum is σ = 168638888880. Its totient is φ = 42599880576.

The previous prime is 85428804689. The next prime is 85428804731. The reversal of 85428804704 is 40740882458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566684 + ... + 3590555.

It is an arithmetic number, because the mean of its divisors is an integer number (7026620370).

Almost surely, 2^85428804704 is an apocalyptic number.

It is an amenable number.

85428804704 is a deficient number, since it is larger than the sum of its proper divisors (83210084176).

85428804704 is a wasteful number, since it uses less digits than its factorization.

85428804704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7157622 (or 7157614 counting only the distinct ones).

The product of its (nonzero) digits is 2293760, while the sum is 50.

The spelling of 85428804704 in words is "eighty-five billion, four hundred twenty-eight million, eight hundred four thousand, seven hundred four".