84235526840 has 32 divisors (see below), whose sum is σ = 189625499280. Its totient is φ = 33677221632.

The previous prime is 84235526803. The next prime is 84235526873. The reversal of 84235526840 is 4862553248.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450437 + ... + 609396.

Almost surely, 2^84235526840 is an apocalyptic number.

It is an amenable number.

84235526840 is an abundant number, since it is smaller than the sum of its proper divisors (105389972440).

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

84235526840 is a wasteful number, since it uses less digits than its factorization.

84235526840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061831 (or 1061827 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 84235526840 in words is "eighty-four billion, two hundred thirty-five million, five hundred twenty-six thousand, eight hundred forty".