84725702578 has 24 divisors (see below), whose sum is σ = 140318889984. Its totient is φ = 38338960440.

The previous prime is 84725702573. The next prime is 84725702609. The reversal of 84725702578 is 87520752748.

It is not an unprimeable number, because it can be changed into a prime (84725702573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 731026 + ... + 838957.

It is an arithmetic number, because the mean of its divisors is an integer number (5846620416).

Almost surely, 2^84725702578 is an apocalyptic number.

84725702578 is a deficient number, since it is larger than the sum of its proper divisors (55593187406).

84725702578 is a wasteful number, since it uses less digits than its factorization.

84725702578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570230 (or 1570219 counting only the distinct ones).

The product of its (nonzero) digits is 8780800, while the sum is 55.

The spelling of 84725702578 in words is "eighty-four billion, seven hundred twenty-five million, seven hundred two thousand, five hundred seventy-eight".