84578957835 has 32 divisors (see below), whose sum is σ = 137439493632. Its totient is φ = 44405306880.

The previous prime is 84578957809. The next prime is 84578957917. The reversal of 84578957835 is 53875987548.

It is not a de Polignac number, because 84578957835 - 2⁵ = 84578957803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84578957835.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1490707 + ... + 1546403.

It is an arithmetic number, because the mean of its divisors is an integer number (4294984176).

Almost surely, 2^84578957835 is an apocalyptic number.

84578957835 is a deficient number, since it is larger than the sum of its proper divisors (52860535797).

84578957835 is a wasteful number, since it uses less digits than its factorization.

84578957835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57283.

The product of its digits is 338688000, while the sum is 69.

The spelling of 84578957835 in words is "eighty-four billion, five hundred seventy-eight million, nine hundred fifty-seven thousand, eight hundred thirty-five".